Why is the title from the page not displayed in the snippet?

Question

Search Engine Optimization

Hello guys, based on the Yandex docks, the title and desk of the snippet = the title and desk of the page in the search.
I have such a problem, I have a site with a video, everything is displayed correctly in snippets on all pages (they do not have micro-markup), and on the domain/tags/... page, only the title is displayed in the snippet, and the desk is taken from first in the list of videos
How to be in such a situation? after all, the snippet should go to the desk from the page, but I take it randomly (on all pages of tags there are different desks)

Answer 1

1. You may have changed the description recently, but Yandex has not yet re-indexed the page and has not taken into account the changes.
2. Yandex reserves the right not to use the text from the description to form the snippet and form it from other text on the page or even (!) from third sources (it happens). In this case, try to make the description more relevant.
https://yandex.ru/adv/edu/webmaster/webmaster-opti...

Answer 2

If the pages with the new Description are already included in the Yandex index but are still not shown in the snippet, try adding text to the domain/tags/... page before the video list. Most often, Yandex takes such text into a snippet.
In order to increase this probability, it is necessary to add highlight words, thematic words and words from the query to this text, along which the domain/tags/... page is promoted.