Hpw to use search filters on product page?

How do I use more than one search filter when searching products on this site?For example, I am looking for styling gels for 2c hair. I click on "Products" - there is no list of products to filter so I do a blank search and select gel from the options dropdown. I get 653 results. I am trying to further filter my search results by selecting "2c" from the filters on the right. I get 10k results back - it seems it has cleared my original search and started a new one rather than filtering the search results. How do I use search filters if selecting one resets existing results?