It is a while now (a couple of years actually) that the following problem occurs. Youtube seems to reduce the video search results after a specific time frame. I.e. if you search today for the videos that had the word "accident" in title yesterday (March 20th) you'll get X results. If you do the same search after 2 weeks for the same day (March 20th) you'll get X/5 results. And if you do the same search in about 2 months for that specific day (March 20th) you'll get X/20 results. I am talking about actual video results, not just the number.
Have you noticed this? Try some "standard" keyword search in title and you'll see that you'll get about 5x results yesterday than in a day 1-2 weeks ago, and about 20x results yesterday compared to a day 2 months ago.
Why youtube removes the majority (95%) of the videos from the api search results after a couple of days?
Is there a way to search the whole library? Is this a bug or it is documented?
Tried all the parameters in case any of these is causing the "bug", but nothing changed.