In https://beta.bookbrainz.org/edition/7b6ad17d-3b8d-4a84-bcd0-4df039f15dba/edit try typing "Basford"
"Biman Basu" (https://beta.bookbrainz.org/author/15ee047c-767d-40dc-bd52-8c5ef31084a7) will appear before Johanna Basford (https://beta.bookbrainz.org/author/b7f64c5a-b1ba-4517-bc89-96f18c1aa548)

compare this screenshot of regular search: https://usercontent.irccloud-cdn.com/file/nXe0KjLn/Screenshot_2020-06-11%20Search%20Results%20%E2%80%93%20BookBrainz.png