Man pages matching name s390_sthyi in section 2:

s390_sthyi.2.en	debian 10 / manpages-dev
s390_sthyi.2.en	debian 11 / manpages-dev
s390_sthyi.2.fr	debian 11 / manpages-fr-dev
s390_sthyi.2.en	debian 12 / manpages-dev
s390_sthyi.2.fr	debian 12 / manpages-fr-dev
s390_sthyi.2.ru	debian 12 / manpages-ru-dev