Let’s figure this out together.
First, make sure that when you're searching for a content item, you're typing the exact headline.
If that’s not the problem, it may be because the content hasn’t gotten a page view in a long time. If that’s the case, we’ll hide it from the search results in order to make things in the dashboard load faster. If you go to the content on your site and give the page a few refreshes, it should pop back up in our search.