How to raise a FB group in the Google search engine for keywords?

Question

Facebook

Good day.

There is a Facebook group that provides various services. A large group of clients comes by a key query from the Google search engine and gets into the FB group.

Recently, the positions of the group have fallen significantly, is it possible to raise the top group (that is, a link to it) in Google, by analogy with sites? What are the ways to raise groups to the top of Google search engines and is it possible?