Change search function (from listing to product)


I’m currently running a Listify theme and the search function in the main header only allows for ‘listings’ to be searched. What I really want this to do is to search ‘Products’ as uploaded by Vendors through the Woocommerce function.

What would be the best way for me to allow visitors to search products in that main search form as opposed to listings?

Would I need to alter the php files? If so, would you be so kind as to recommend what needs changing?

Thanks in advance.