I think you have to be a premium member on this site to do advanced search through the site. Most forums I am on encourage members to use search before posting, but HBT seems to prefer people repost consistently. Not a gripe, just observation.
As carrolte points out, you can use google, but it seems the advanced search can do things like sort by username and such. My google-fu is lacking, so I don't know if you can do the same through google.