Man pages matching name www::google::calculator in section 3pm:

WWW::Google::Calculator.3pm.en	debian 10 / libwww-google-calculator-perl
WWW::Google::Calculator.3pm.en	debian 11 / libwww-google-calculator-perl
WWW::Google::Calculator.3pm.en	debian 12 / libwww-google-calculator-perl