The specific profile you mentioned is a newbie account with 0 posts. There are numerous profiles with the name and some other characters.
When am account has zero post, it is difficult to be searched with forum or google enhanced search.
If bpip.org as recommended by yahoo62278 doesn't work, try this
TalksearchMaybe Op will be somewhere there wondering about the stress or derivation of using the search bar when the used is active in the forum.
Maybe he should be let known that the forum recognizes and givers users permission to navigate the forum a registered user only when there is an activity count after post is made.