This is annoying indeed. It is due to search results being currently sorted by score only, and all of these results have the same score (84). Here is the corresponding ticket to follow/vote:
I recommend you to use the web service instead; See https://musicbrainz.org/doc/MusicBrainz_API/Search.
To follow your example, you can get all search results either in XML (here) or in JSON (here).