There's no indication it's doing this on purpose. It just looks broken and confusing. There also doesn't appear to be a way to tell it to only show exact matches. The obvious place would be the refinement sidebar, but dimensions are absent.

edit: for comparison, have a look at B&H's search where you can get so specific that it only shows one result

https://www.bhphotovideo.com/c/products/laptops/ci/18818/N/4...