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.