Better tooltip

htdocs/langs/en_US/main.lang

@@ -788,8 +788,8 @@ SetRef=Set ref
 Select2ResultFoundUseArrows=Some results found. Use arrows to select.
 Select2NotFound=No result found
 Select2Enter=Enter
-Select2MoreCharacter=or more characters<br /><br /><strong>SEARCH OPERANDS:</strong><br /><kbd><strong> |</strong></kbd><kbd> OR</kbd><br /><kbd><strong>*</strong></kbd><kbd> Any character</kbd><br /><kbd><strong>^</strong></kbd><kbd> Start with</kbd><br /><kbd><strong>$</strong></kbd><kbd> End with</kbd><br />
-Select2MoreCharacters=or more characters<br /><br /><strong>SEARCH OPERANDS:</strong><br /><kbd><strong> |</strong></kbd><kbd> OR</kbd><br /><kbd><strong>*</strong></kbd><kbd> Any character</kbd><br /><kbd><strong>^</strong></kbd><kbd> Start with</kbd><br /><kbd><strong>$</strong></kbd><kbd> End with</kbd><br />
+Select2MoreCharacter=or more characters<br /><br /><strong>Search syntax:</strong><br /><kbd><strong> |</strong></kbd><kbd> OR</kbd> (a|b)<br /><kbd><strong>*</strong></kbd><kbd> Any character</kbd> (a*b)<br /><kbd><strong>^</strong></kbd><kbd> Start with</kbd> (^ab)<br /><kbd><strong>$</strong></kbd><kbd> End with</kbd> (ab$)<br />
+Select2MoreCharacters=or more characters<br /><br /><strong>Search syntax:</strong><br /><kbd><strong> |</strong></kbd><kbd> OR</kbd> (a|b)<br /><kbd><strong>*</strong></kbd><kbd> Any character</kbd> (a*b)<br /><kbd><strong>^</strong></kbd><kbd> Start with</kbd> (^ab)<br /><kbd><strong>$</strong></kbd><kbd> End with</kbd> (ab$)<br />
 Select2LoadingMoreResults=Loading more results...
 Select2SearchInProgress=Search in progress...
 SearchIntoThirdparties=Thirdparties