Search does not work with the current theme but it works well with another. Why? !!

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1

Like using my template and modify many things in it and do not want to change it, but I was surprised that the search in the questions does not work but  when change theme work well.
What is the relation between the theme and search in questions?
And how to solve this problem?
Thanks for your Support

What is your current theme? our theme?

no
i have other theme and change it to twenty thirteen which work well with it

If i want to use other Theme for anspress only for solve the problem how can I do that?

1

Hello, i had the same problem. In my case the problem was in the file functions.php this were my problem, i hope this will help you:

function my_smart_search( $search, &$wp_query ) {
	global $wpdb;

	if ( empty( $search ))
		return $search;

	$terms = $wp_query->query_vars[ 's' ];
	$exploded = explode( ' ', $terms );
	if( $exploded === FALSE || count( $exploded ) == 0 )
	$exploded = array( 0 => $terms );

	$search = "";
	foreach( $exploded as $tag ) {
	$search .= " AND (
		(wp_posts.post_title LIKE '%$tag%')
		OR (wp_posts.post_content LIKE '%$tag%')
		OR EXISTS
		(
			SELECT * FROM wp_comments
			WHERE comment_post_ID = wp_posts.ID
			AND comment_content LIKE '%$tag%'
		)
		OR EXISTS
		(
			SELECT * FROM wp_terms
			INNER JOIN wp_term_taxonomy
			ON wp_term_taxonomy.term_id = wp_terms.term_id
			INNER JOIN wp_term_relationships
			ON wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id
			WHERE taxonomy = 'post_tag'
			AND object_id = wp_posts.ID
			AND wp_terms.name LIKE '%$tag%'
		)
		)";
	}

	return $search;
}
add_filter( 'posts_search', 'my_smart_search', 500, 2 );

function buscador_mostrar_solo_posts($query){
	if ($query->is_search) {
		$query->set(‘post_type’, ‘post’);
	}
	return $query;
}
add_filter(‘pre_get_posts’, ‘buscador_mostrar_solo_posts’);
edited answer