Thread:SamwiseFilmore/@comment-27219153-20170213172146/@comment-25101690-20170217200245

Yep, the search items seem to be in some kind of index that has to be refreshed regularly. Might be  helps. If not, they probably run an update script once a day or so.

Also, I found this: As you can see in this screenshot (which is the data received from the server after an AJAX request triggered by search bar input) the server already handles redirects and shows only the redirect targets, not the actual redirect pages. With redirects, we can infinitely improve the search without cluttering the search results. However, the screenshot also shows that "Rhûn" is a redirect to "Rhun", while it should be the other way around.