diff --git a/lang/en/admin.php b/lang/en/admin.php
index 27ea7881e0a..d1c36da394d 100644
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -415,7 +415,7 @@ $string['configvariables'] = 'Variables';
 $string['configverifychangedemail'] = 'Enables verification of changed email addresses using allowed and denied email domains settings. If this setting is disabled the domains are enforced only when creating new users.';
 $string['configvisiblecourses'] = 'Display courses in hidden categories normally';
 $string['configwarning'] = 'Be careful modifying these settings - strange values could cause problems.';
-$string['configyuicomboloading'] = 'This options enables combined file loading optimisation for YUI libraries. This setting should be enabled on production sites for performance reasons.';
+$string['configyuicomboloading'] = 'This option enables combined file loading optimisation for YUI libraries. It should be enabled for performance reasons.';
 $string['confirmation'] = 'Confirmation';
 $string['confirmationpending'] = 'Confirmation pending';
 $string['confirmcontextlock'] = '{$a->contextname} is currently unfrozen. Freezing it will make it read-only and prevent users from making changes. Are you sure you wish to continue?';
diff --git a/lang/en/availability.php b/lang/en/availability.php
index 0f6c11ea796..acd3ee0db83 100644
--- a/lang/en/availability.php
+++ b/lang/en/availability.php
@@ -37,11 +37,11 @@ $string['hidden_individual'] = 'Hidden entirely if student doesn\'t meet this co
 $string['invalid'] = 'Please set';
 $string['itemheading'] = '{$a->number} {$a->type} restriction';
 $string['item_unknowntype'] = 'These restrictions use a plugin which is no longer available (if it is okay to remove that restriction, delete it below)';
-$string['shown_individual'] = 'Displayed if student doesn\'t meet this condition';
+$string['shown_individual'] = 'Item name displayed with access restriction information if student doesn\'t meet this condition';
 $string['hide_verb'] = 'Click to hide';
 $string['show_verb'] = 'Click to display';
 $string['hidden_all'] = 'Hidden entirely if student doesn\'t meet the conditions';
-$string['shown_all'] = 'Displayed if student doesn\'t meet the conditions';
+$string['shown_all'] = 'Item name displayed with access restriction information if student doesn\'t meet the conditions';
 $string['label_multi'] = 'Required restrictions';
 $string['label_sign'] = 'Restriction type';
 $string['list_and'] = 'All of:';
diff --git a/lang/en/backup.php b/lang/en/backup.php
index 57d622281eb..33f948048e0 100644
--- a/lang/en/backup.php
+++ b/lang/en/backup.php
@@ -36,7 +36,7 @@ $string['asyncemailenable'] = 'Enable notifications';
 $string['asyncemailenabledetail'] = 'If enabled, users will receive a notification when an asynchronous backup or restore completes.';
 $string['asyncmessagebody'] = 'Notification';
 $string['asyncmessagebodydetail'] = 'Notification to send when an asynchronous backup or restore completes.';
-$string['asyncmessagebodydefault'] = 'Your {operation} (ID: {backupid}) has completed successfully. You can access it here: <a href="{link}">{link}</a>.';
+$string['asyncmessagebodydefault'] = '{operation} (ID: {backupid}) completed. Access it here: <a href="{link}">{link}</a>.';
 $string['asyncmessagesubject'] = 'Subject';
 $string['asyncmessagesubjectdetail'] = 'Notification subject';
 $string['asyncmessagesubjectdefault'] = 'Moodle {operation} completed successfully';
diff --git a/mod/assign/lang/en/assign.php b/mod/assign/lang/en/assign.php
index cb4921743da..e8cf4d21040 100644
--- a/mod/assign/lang/en/assign.php
+++ b/mod/assign/lang/en/assign.php
@@ -698,7 +698,7 @@ $string['userassignmentdefaults'] = 'User assignment defaults';
 $string['useridlistnotcached'] = 'The grade changes were NOT saved, as it was not possible to determine which submission they were for.';
 $string['useroverrides'] = 'User overrides';
 $string['usersubmissioncannotberemoved'] = 'The submission of {$a} cannot be removed.';
-$string['usersnone'] = 'There are no users enrolled in this course.';
+$string['usersnone'] = 'There are no users enrolled in this course or no users can access the assignment.';
 $string['userswhoneedtosubmit'] = 'Users who need to submit: {$a}';
 $string['usergrade'] = 'User grade';
 $string['validmarkingworkflowstates'] = 'Valid marking workflow states';
diff --git a/mod/lesson/lang/en/lesson.php b/mod/lesson/lang/en/lesson.php
index 96fb07f62a0..9aebe5a261e 100644
--- a/mod/lesson/lang/en/lesson.php
+++ b/mod/lesson/lang/en/lesson.php
@@ -589,7 +589,7 @@ $string['usemean'] = 'Use mean';
 $string['usepassword'] = 'Password protected lesson';
 $string['usepassword_help'] = 'If enabled, a password is required in order to access the lesson.';
 $string['useroverrides'] = 'User overrides';
-$string['usersnone'] = 'There are no users enrolled in this course.';
+$string['usersnone'] = 'There are no users enrolled in this course or no users can access the lesson.';
 $string['viewessayanswers'] = 'View essay answers';
 $string['viewgrades'] = 'View grades';
 $string['viewreports'] = 'View {$a->attempts} completed {$a->student} attempts';
diff --git a/mod/quiz/lang/en/quiz.php b/mod/quiz/lang/en/quiz.php
index 7e1f89db136..f1e1b5972d4 100644
--- a/mod/quiz/lang/en/quiz.php
+++ b/mod/quiz/lang/en/quiz.php
@@ -1131,7 +1131,7 @@ $string['upgradingveryoldquizattempts'] = 'Upgrading very old quiz attempts: {$a
 $string['url'] = 'URL';
 $string['usedcategorymoved'] = 'This category has been preserved and moved to the site level because it is a published category still in use by other courses.';
 $string['useroverrides'] = 'User overrides';
-$string['usersnone'] = 'There are no users enrolled in this course.';
+$string['usersnone'] = 'There are no users enrolled in this course or no users can access the quiz.';
 $string['validate'] = 'Validate';
 $string['viewallanswers'] = 'View {$a} quiz attempts';
 $string['viewallreports'] = 'View reports for {$a} attempts';