Reply To: Search only topics not forum / replies

yes put this in your functions file – untested but should work

add_filter ('bbp_before_get_search_terms_parse_args', 'pluus_amend_search') ;

function pluus_amend_search ($args) {
	$args['post_type'] =  bbp_get_topic_post_type() ;
return $args ;
}