Yeah google.de doesn't work either.... not sure if it's viable but maybe insert a new variable like $passivevid endings into the pregmatch statement to search for like:
video.google$passivevid
$vbulletin->options['endings'] <- defined in admincp where users can enter: .com,.co.uk etc
and then a little loop in which pregmatch goes through and searches for relevant matches with all the domain endings entered in the admincp.
More work, aye, sorry to bring it up lol

Love this hack though