tax query
$tax_query = array( array( 'taxonomy' => 'wpdmcategory', 'terms' => 'flexzone', 'field' => 'slug', 'operator' => 'IN', 'include_children' => true, ), array( 'taxonomy' => 'post_tag', 'terms' => 'aedocs', 'field' => 'slug', 'operator' => 'IN', 'include_children' => true, ), );