Display order items names in WooCommerce admin orders list [closed]

Never overwrite core files! for many reasons. Note that an order can have many items (products).

On orders admin list, the following will add item(s) (product(s)) names, to order status column:

add_action( 'manage_shop_order_posts_custom_column' , 'custom_orders_list_column_content', 20, 2 );
function custom_orders_list_column_content( $column, $post_id ) {
    global $the_order, $post;

    if ( 'order_status' === $column ) {
        $products_names = []; // Initializing

        // Loop through order items
        foreach ( $the_order->get_items() as $item ) {
            $product = $item->get_product(); // Get the WC_Product object
            $products_names[]  = $item->get_name(); // Store in an array
        }
        // Display
        echo '<ul style="list-style: none;"><li>' . implode('</li><li>', $products_names) . '</li></ul>';
    }
}

Code goes on functions.php file of your active child theme (or active theme). Tested and work.