Man pages matching name html::treebuilder::xpath in section 3pm:

HTML::TreeBuilder::XPath.3pm.en	debian 10 / libhtml-treebuilder-xpath-perl
HTML::TreeBuilder::XPath.3pm.en	debian 11 / libhtml-treebuilder-xpath-perl
HTML::TreeBuilder::XPath.3pm.en	debian 12 / libhtml-treebuilder-xpath-perl