Man pages matching name mhstore in section 1mh:

mhstore.1mh.en	debian 10 / mmh
mhstore.1mh.en	debian 10 / nmh
mhstore.1mh.en	debian 11 / mmh
mhstore.1mh.en	debian 11 / nmh
mhstore.1mh.en	debian 12 / mmh
mhstore.1mh.en	debian 12 / nmh