We use a preprocess function to remove elements you don’t need
Insert this code snippet in your theme’s template.php and change THEMENAME to your theme’s name. Comment what you don’t need (delete user + date, delete user or delete date)
function THEMENAME_preprocess_search_result(&$vars) { //delete user + date $vars['info'] = ""; //delete user $vars['info'] = $vars['info_split']['date']; //delete date $vars['info'] = $vars['info_split']['user']; }