How to avoid getting unnecessary information in the search results?

Question

Search Engine Optimization

I have filters on my site and, in fact, the catalog itself with goods, the site begins with a catalog, well, in principle, it doesn’t matter. Filters, for example, are Ceramic, Porcelain, Granite, Mosaic, etc.
The fact is that these filter names and sometimes elements of goods from the catalog, for example, price and title, are issued by a search engine, that is, I find my site on Yandex, and there is all this in the description, and this is all despite the fact that the description tag is indicated . I am a complete layman in SEO, and therefore I want to ask for advice on how to organize it all and display my description. Can you recommend something to promote? This site used to be #1 for "tiles" in my region, but now it's down to page 4.

Answer 1

try placing pages with a transition to a search query in the robots.txt file as prohibited for processing.

Answer 2

robots.txt
And some cms allow you to hide certain things for search.

Answer 3

Does the main page of your site have a description and title of products or catalogs? Or I misunderstood? Show an example.
If you want the description to be what you want, then write a small text (a couple of sentences, up to 200 characters) on the main page + in the description tag.