Threads on google groups not on gmane?

Fri Mar 30 20:47:48 EDT 2012

I went onto google groups to do a search and saw three threads (there 
may be more) that I've never seen on gmane, which I read via thunderbird 
on windows. The titles are "Is programming art or science", 
"breezypythongui: A New Toolkit for Easy GUIs in Python" and "weird 
behaviour: pygame plays in shell but not in script".
Is anyone else seeing the same thing?
-- 
Cheers.
Mark Lawrence.