These commands can only be accessed after you enable support for Asian languages in LibreOfficeDev - PreferencesTools - Options - Languages and Locales - General.
Ajaja kana bira gahuuf...
Choose LibreOfficeDev - PreferencesTools - Options - Languages and Locales - Searching in Japanese.
Akka walqixaatti lakkaa'a
Specifies the options to be treated as equal in a search.