$tax_query
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'tai', 'terms' => '17', ), array( 'taxonomy' => 'tai', 'terms' => '22', ), );
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'tai', 'terms' => '17', ), array( 'taxonomy' => 'tai', 'terms' => '22', ), );