Search whole website

Is there a way this search function can search for other content on my site? Not just products?

For example, I type in APS100N (which is not listed as an actual product just as content in a different section) and no results are returned. This plugin works great when searching for products, part no, keywords etc but would be ideal if I could get it to search my full site.

The page I need help with: [log in to see the link]