Exclude ID doesnt work if nothing selected

i create category and meta box for pages.
or is there a way display only pages which have one of the taxomonies?
eg i create this below now if I click on search button without something selected. displaying every page . Also Pages none selected category

function create_regionalersektor_hierarchical_taxonomy() {

$labels = array(
‘name’ => _x( ‘Regionaler Sektor’, ‘taxonomy general name’ ),
‘singular_name’ => _x( ‘Regionaler Sektor’, ‘taxonomy singular name’ ),
‘search_items’ => __( ‘Search Regionaler Sektor’ ),
‘all_items’ => __( ‘All Regionaler Sektor’ ),
‘parent_item’ => __( ‘Parent Regionaler Sektor’ ),
‘parent_item_colon’ => __( ‘Parent Regionaler Sektor:’ ),
‘edit_item’ => __( ‘Edit Regionaler Sektor’ ),
‘update_item’ => __( ‘Update Regionaler Sektor’ ),
‘add_new_item’ => __( ‘Add New Regionaler Sektor’ ),
‘new_item_name’ => __( ‘New Regionaler Sektor Name’ ),
‘menu_name’ => __( ‘Regionaler Sektor’ ),
);
register_taxonomy(‘regionalersektor’,array(‘page’), array(
‘hierarchical’ => true,
‘labels’ => $labels,
‘show_ui’ => true,
‘show_admin_column’ => true,
‘query_var’ => true,
‘rewrite’ => array( ‘slug’ => ‘regionalersektor’ ),
));

}