Naively searching for artist from ISNI without advanced query syntax doesn't return any result, for example: https://musicbrainz.org/search?query=122764157&type=artist

While https://musicbrainz.org/search?query=isni:122764157&type=artist&method=advanced always finds Johann Sebastian Bach.

ISNI format follows a pattern. The same goes for most searchable fields: IPI, begin date, end date, type, and so on. The search form could automagically suggest some advanced queries to the user based on patterns matching his/her basic query.