Search Term Limit on Joomla

Search term must be a minimum of 3 characters and a maximum of 20 characters. What if you want to search only 2 characters thing? Or you want to limit your search at minimum using at least 10 characters?

Just go to /administrator/components/com_search/helpers/search.php

See line 69

{xtypo_code}        if ( $searchword && JString::strlen( $searchword ) < 3 ) {
            $searchword     = '';
            $restriction     = true;
        }{/xtypo_code}

Change that 3 to whatever number you like.