Knowledge Base search is very poor

Search is poor. There are currently two searches, returning different results; the popup while typing in the search bar, which gives particularly poor results, and the results after submission.

• Numbers are poorly-handled. Try searching for "MariaDB 11.2", or "Upgrading from MariaDB 10.6" for example
• For the latter, one would probably want "Upgrading from MariaDB 10.6 to MariaDB 10.11". However, this appears tenth in the popup (the search results after submitting are good)
• For the former, one would expect "Changes and Improvements in MariaDB 11.2" or the "MariaDB 11.2" category. Neither of these results appear at all in the popup, while they appear seventh and third in the results after submitting.
• Another example: search for "ER_VARIABLE_IGNORED". One would expect to find https://mariadb.com/kb/en/e4200/, but the popup displays various irrelevant results, and the main search returns nothing at all