If your files show up in someone's search results, it doesn't mean that the person was searching for your files. The names of your files might be similar to what people are searching for & so they show up in search results.

Say you had a file called 'woopeedoo'. If people are searching for a file called 'woopee' or 'woopeeblah'...your file will probably show up in their search results even though they weren't looking for that file.