Ability to search by tld

[zb3]

Back in the day I could type:

%.domain.com

to find all certificates for a domain and its subdomains. Now I know I can just type

domain.com

but there's one tricky case that doesn't seem to be possible now.

One day I wanted to see whether there were any certificates for... websites in North Korea :)
So I searched for

%.kp

and that worked back then, but now searching for

kp

doesn't work this way. Is there any trick to make it work with the current version?