Man pages matching name xml::libxml::sax::builder in section 3pm:

XML::LibXML::SAX::Builder.3pm.en	debian 10 / libxml-libxml-perl
XML::LibXML::SAX::Builder.3pm.en	debian 11 / libxml-libxml-perl
XML::LibXML::SAX::Builder.3pm.en	debian 12 / libxml-libxml-perl