If I'm searching in a specific part of the site, for example 'Lubes', and use the refined search parameters to search for 'water based anal lube', selecting those two parameters doesn't show me the products that are water based anal lubes.

Rather it shows me all the water based lubes AND the anal lubes.

It would nice if the search could narrow itself down, searching for overlaps within the parameters and then only revealing the lubes that have the shared parameters.