$terms = wp_get_post_terms( get_the_ID(), 'works',  array( 'orderby'=>'name', 'order'=>'DESC' ));
  if ($terms){
   foreach ( $terms as $term ):
    $arterm[] = $term->slug;
   endforeach;
  }

query_posts(
            array(
                'post_type' => 'portfolio',
                'posts_per_page' => 12,
                'post__not_in' => array($post->ID),
		'tax_query' => array(
			array(
			 'taxonomy'=>'works',
			 'terms'=>$arterm,
			 'field'=>'slug',
			 'operator'=>'IN'
			),
			'relation' => 'AND'
			)
            )
        );