Search engine request

Howdy again,
I was wondering if there was a way to include the tags in the search engine results. I wanted not to display the tags applied to an article, but use it as a background research tool to sort articles according to a word/tag. For now, when i type a tag word in the search engine, it proposes no results (as no article/page is named after this word).
Is there any direct way to do this ?
Thanks a lot for the precious help !

G