这应该可以通过tax_query parameters for WP_Query.

查询是针对任何术语NOT EXISTS, OR, 对于术语ID为IN 提供的阵列。

\'tax_query\' => array(
    \'relation\' => \'OR\',
    array(
        \'taxonomy\' => \'group\',
        \'operator\' => \'NOT EXISTS\',
    ),
    array(
        \'taxonomy\' => \'group\',
        \'field\'    => \'term_id\',
        \'terms\'    => array( 23, 42 ),
        \'operator\' => \'IN\',
    ),
)