Searching for the last name does not find an account

[Maltimore]

I just used the Liberapay search for "Owens". The profile I was looking for is this:

https://en.liberapay.com/doctormo/

and the name "Owens" is known to Liberapay as can be seen in the profile. Unfortunately, the Liberapay search only found unrelated accounts.

[Changaco]

The reason why you didn't find the result you expected is that the search completely ignores the public_name of an account, and that's because the search feature predates the introduction of that profile attribute and hasn't been updated to use it.