Different results from MusicBrainz-Scripts

If I do a search with the script 'MusicBrainz Web Service - Search by Album (+ID Tags)' and the album-name 'Scream' I get various results, but nothing from the artist Chris Cornell.

If I do a search with the script 'MusicBrainz Web Service - Search by Artist' and the artist-name 'Chris Cornell' I get multiple results INCLUDING the album 'Scream'.

What is the difference in the two scripts, causing that the first script doesn't find the album 'Scream'?
This is a problem for me, because I like to add the MusicBrainz-IDs to my mp3-Tags. In this case I have no chance to get die MB-ID's.

Could someone with more experience with scripts have a look?

(And btw: Maybe a line with some script-version-info would be helpful).

Why not post in the thread?

Results are limited to 20

So change &limit=20 to 40 in the [IndexUrl]