In the Admin on the Categories/Products this is the main criteria for the search on Products:
PHP Code:
and (
pd.products_name like '%" . zen_db_input($_GET['search']) . "%'
or pd.products_description like '%" . zen_db_input($_GET['search']) . "%'
or p.products_model like '%" . zen_db_input($_GET['search']) . "%')" .
$order_by);
If you were to go into phpMyAdmin and search the products_name and products_description using the Like%...% you should pull up the same products (excluding the products_model located in the products table) ...
Try a search on something in your Zen Cart Admin that is a products_name ... now do the same in phpMyAdmin ... how many records come up in each?