Clearing outdated search results comes down to one question: do you own the...

https://reportz.io/technology/how-do-i-keep-dead-urls-from-creating-a-bad-user-experience-in-search/

Clearing outdated search results comes down to one question: do you own the site? If you control the URL, update the page and use Google’s "Refresh Outdated Content" tool to speed up the re-crawl