Man pages matching name dch in section 1:

dch.1.de	debian 10 / devscripts
dch.1.en	debian 10 / devscripts
dch.1.fr	debian 10 / devscripts
dch.1.de	debian 11 / devscripts
dch.1.en	debian 11 / devscripts
dch.1.fr	debian 11 / devscripts
dch.1.de	debian 12 / devscripts
dch.1.en	debian 12 / devscripts
dch.1.fr	debian 12 / devscripts