wp_query custom post types - wordpress

Question

I dont know if I just can t see the forrest for the tress, but I need some help. I have a custom post type "business" with 2 related custom taxonomies, business_category and business_tags. On the custom archive template I have a custom search form:
<form class="search-form" role="search" method="get" action="<?php echo home_url( '/' ); ?>">
<div class="form-group">
<label for="search-input"><i class="fa fa-search" aria-hidden="true"></i><span class="screen-reader-text">Search icons</span></label>
<input type="hidden" name="post_type" value="wego_business" />
<input type="search" class="form-control search-field" placeholder="Search the Directory" value="" name="s" id="s">
</div>
</form>
This then display on a custom search template. I can not get results for the business_tags
global $wp_query;
$paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
$tag = get_search_query();
$args = array (
's' => $s,
'order' => 'ASC',
'orderby' => 'name',
'tax_query' => array(
array(
'taxonomy' => 'business_tags',
'field' => 'slug',
'terms' => $tag,
),
),
'paged' => $paged
);
AM I missing something obvious?
Here is the cpt creation:
$labels = array(
'name' => _x( 'Business', 'Post Type General Name', 'wego_fran' ),
'singular_name' => _x( 'Business', 'Post Type Singular Name', 'wego_fran' ),
'menu_name' => __( 'Business', 'wego_fran' ),
'parent_item_colon' => __( 'Parent Business:', 'wego_fran' ),
'all_items' => __( 'All Business', 'wego_fran' ),
'view_item' => __( 'View Business', 'wego_fran' ),
'add_new_item' => __( 'Add New Business', 'wego_fran' ),
'add_new' => __( 'Add New', 'wego_fran' ),
'edit_item' => __( 'Edit Business', 'wego_fran' ),
'update_item' => __( 'Update Business', 'wego_fran' ),
'search_items' => __( 'Search Business', 'wego_fran' ),
'not_found' => __( 'Not found', 'wego_fran' ),
'not_found_in_trash' => __( 'Not found in Trash', 'wego_fran' ),
);
$args = array(
'label' => __( 'Business', 'wego_fran' ),
'description' => __( 'Business', 'wego_fran' ),
'labels' => $labels,
'supports' => array( 'title', 'editor', 'thumbnail', 'page-attributes' ),
'taxonomies' => array( 'business_category', 'business_tags' ),
'hierarchical' => true,
'public' => true,
'show_ui' => true,
'show_in_menu' => true,
'show_in_nav_menus' => true,
'show_in_admin_bar' => true,
'menu_position' => 20,
'menu_icon' => 'dashicons-admin-home',
'can_export' => true,
'has_archive' => true,
'exclude_from_search' => false,
'publicly_queryable' => true,
'capability_type' => 'post',
'rewrite' => array( 'slug' => 'business' ),
);
register_post_type( 'wego_business', $args );
<?php
global $wp_query;
$paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
$tag = get_search_query();
$args = array (
'post_type' => 'wego_business',
's' => $s,
'order' => 'ASC',
'orderby' => 'name',
'tax_query' => array(
array(
'taxonomy' => 'business_tags',
'field' => 'slug',
'terms' => $tag,
),
),
'paged' => $paged
);
// The Query
$wp_query = new WP_Query( $args );
$count = $wp_query->found_posts;
?>
the custom search template is search-wego_business.php using the above query

Answer 1

Perhaps you're missing the post_type field and you can also search inside the name field. A refactor would look like:
$args = array (
'post_type' => 'business',
's' => $s,
'order' => 'ASC',
'orderby' => 'name',
'tax_query' => array(
array(
'taxonomy' => 'business_tags',
'field' => 'name',
'terms' => $tag,
),
),
'paged' => $paged
);
Else, I would need more details - like: your taxonomy and custom post type declaration and the full source of your archive (at least the part that builds the search query).