Unless users are looking specifically for a page such as your returns policy or one of your categories, then they’re looking for a product.

Product searches constitute most of the searches, whether they look for a product keyword or a symptom, and thus products should be shown first in the search results. Again, that’s unless they are searching for a category or one of your “policy” pages and such. 

It should then be followed by what was found in other relevant content, such as your blog posts and guides.