Thank you for pointing this out. This will be brought to the attention of the administrators who are tracking down issues with the upgraded version of vBulletin.
The built-in search for vBulletin has never been quite satisfactory. Searching the forums with a site such as Google has generally returned better results. Start the search on sites like Google with tech.lds.org specified by using the "site:" key. For example I would lead my key words with "site:tech.lds.org ".
JD Lessley
Have you tried finding your answer on the ChurchofJesusChrist.org Help Center or Tech Wiki?