在特定页面上，我希望只对来自两个自定义分类法的术语执行搜索。不是内容或标题。也就是说，用户直接搜索分类术语。

我试图做的是完全重写搜索查询，但它似乎不起作用。

function search_filter_get_posts($query) {
    if ( !$query->is_search )
        return $query;

    $terms = explode(",", $query->query[\'s\']);

    $taxquery = array(
        \'post_type\' => \'eproduct\',
        \'tax_query\' => array(
            \'relation\' => \'OR\',
            array(
                \'taxonomy\' => \'product-type\',
                \'field\'    => \'slug\',
                \'terms\'    => $terms,
            ),
            array(
                \'taxonomy\' => \'product-features\',
                \'field\'    => \'slug\',
                \'terms\'    => $terms,
            ),
        ),
    );
;
 $query = new WP_Query( $taxquery );

}
add_action( \'pre_get_posts\', \'search_filter_get_posts\' );