Man pages matching name ypmatch in section 1:

ypmatch.1.ja	debian 10 / manpages-ja
ypmatch.1.en	debian 10 / nis
ypmatch.1.ja	debian 11 / manpages-ja
ypmatch.1.en	debian 11 / yp-tools
ypmatch.1.ja	debian 12 / manpages-ja
ypmatch.1.en	debian 12 / yp-tools