Filter by: Part of string

Hi, I have a question regarding Algolia. We currently are building Algolia into our Sitecore website and are testing it at the moment.

I have a question regarding the filtering of results:
I am following this article: Filter by string | Algolia

Here, in this example, you focus on filtering on the “brand”, which is just LG, Motorola, Samsung or Apple. Is it possible to focus on a field like: Description? And then focus on a specific word? Like Datasheet?

I want to make a rule that says: If an item in the search results contain “Datasheet” in the Description field, then rank him at the top. Is it possible? Can you help me please?

Thanks in advance,
Kind regards,
P.