Search only post titles and tags

Hello,
this is the first post I am posting here. I searched a lot for a feature I need, but could’nt find any information.
I have a search bar and I need to search only for post titles and tags assigned to the post.
I tried a plugin Search everything, but it searches in content and dates also.

I found this code, but it searches only for titles and I tried to change it to search for tags too but without luck:
function __search_by_title_only( $search, &$wp_query )
{
global $wpdb;
if ( empty( $search ) )
return $search;
$q = $wp_query->query_vars;
$n = ! empty( $q[‘exact’] ) ? ” : ‘%’;
$search =
$searchand = ”;
foreach ( (array) $q[‘search_terms’] as $term ) {
$term = esc_sql( like_escape( $term ) );
$search .= “{$searchand}($wpdb->posts.post_title LIKE ‘{$n}{$term}{$n}’)”;
$searchand = ‘ AND ‘;
}
if ( ! empty( $search ) ) {
$search = ” AND ({$search}) “;
if ( ! is_user_logged_in() )
$search .= ” AND ($wpdb->posts.post_password = ”) “;
}
return $search;
}
add_filter( ‘posts_search’, ‘__search_by_title_only’, 500, 2 );

Is there a plugin I can use or how can I change the code so it searches both titles and tags?

Thank you in advance.