For anyone who uses the search box regularly (especially for products), changing the following language file may help your end users when searching:
main.lang
Select2MoreCharacter=or more characters<br /><br /><strong>SEARCH PARAMETERS:</strong><br /><i>[without spaces]</i><br /><br /><kbd><strong> |</strong></kbd> <kbd> OR</kbd><br /><kbd><strong>*</strong></kbd> <kbd>SEARCH ALL</kbd><br />
Please mark ‘Thank you’ on this post to see if it actually helps anybody other than us.