Search for custom Woocommerce products attribute

I created custom products attributes from the single product page of woocommerce, in the section called “custom attributes”. I would like that when an user search something on the front page, using the ivory plugin search box, the term typed is searched also from the values of the custom attributes that I set for the products. Is there a way to do it? And if not, how can I modify the plugin to do it?

Thanks in advance