Oh, you meant the results page, not the live results list. First, make sure, that the search redirects to the WooCommerce results page: https://i.imgur.com/5Tnc76R.png
The results page is controlled by the theme you are using – if it has some sort of a theme editor, or theme settings somewhere on the back-end, then there are probably options to show the fields you need. Although I am almost sure, that by redirecting to the WooCommerce results page will resolve everything.