Not yet, I’m afraid. It’s being worked on, but it hasn’t been deployed yet. It requires a bit of work to set up:
https://pagure.io/fedora-docs/docs-fp-o/issue/2
For the time being, please use a “site specific” search in Duckduckgo.com like this:
site:docs.fedoraproject.org <your query>
(replace <your query> with your search terms).