If you want to use operators during Dataverse searches, they are only supported in the same language in which you provisioned your environment.

Therefore, you cannot create an English environment and use operators for Dataverse searches in both English and Japanese.

This is because the use of operators during Dataverse searches in Japanese is not supported.

However, some users prefer to use the Dataverse searches in English, while others prefer to use it in Japanese.

Therefore, it would greatly improve convenience if Dataverse search operators could be used in all languages, regardless of the language in which the environment was provisioned.