tax
$tax_query = array( array( 'taxonomy' => 'jobs', 'terms' => 'subjects', 'field' => 'term_id', 'operator' => 'AND', 'include_children' => true, ), );
$tax_query = array( array( 'taxonomy' => 'jobs', 'terms' => 'subjects', 'field' => 'term_id', 'operator' => 'AND', 'include_children' => true, ), );