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,