There are so many reasons responsible for why the YouTube search is not working. It could be due to spelling errors, too-long keywords, deleted videos, or weak internet connection, which are minor reasons. The major reasons for the YouTube search bar not working can be due to either of the following reasons;
Restrict Mode Enabled In YouTube: To use the mode to limit kids to view certain content on YouTube, it may cause search glitches.
Search Blocked by Certain Program or Setting:A easy restart of your device will solve the incompatible among applications.
Antivirus and Firewall:Sometimes, the Antivirus and Firewall may stop YouTube to search.
JavaScript or Browser Problem: When using YouTube on a browser, the issue of JavaScript or browser will affect the use of YouTube search.
YouTube Search Function Is Down