How to find a video on Youtube by a word not from the title, but from the description?

Question

YouTube

You need to find a lot of videos that have NOT IN THE TITLE, BUT IN THE DESCRIPTION under the video there is the necessary word.
For example, I need to find all videos that contain the word "apple" in their description.
How can I do this? Tags, services
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Also interested in a way to search for posts on Instagram with the keyword IN DESCRIPTION under the photo / video

Answer 1

Oddly enough, through search engines, you can search for any text and on any sites.
https://www.google.com/search?q=%D0%94%D1%83%D0%BC...