Man pages matching name sscanf in section 3:

sscanf.3.de	debian 10 / manpages-de-dev
sscanf.3.en	debian 10 / manpages-dev
sscanf.3.es	debian 10 / manpages-es
sscanf.3.ja	debian 10 / manpages-ja-dev
sscanf.3.de	debian 11 / manpages-de-dev
sscanf.3.en	debian 11 / manpages-dev
sscanf.3.fr	debian 11 / manpages-fr-dev
sscanf.3.ja	debian 11 / manpages-ja-dev
sscanf.3.en	debian 12 / manpages-dev
sscanf.3.ja	debian 12 / manpages-ja-dev