I ran into the same problem in june/july. I added the "since"
parameter to solve the problem.
Example:
http://search.twitter.com/search.atom?lang=en&q=thanksgiving&since=2010-11-24
Make sure the since parameter is not more then 5/6 days back in the past.
Cheers
P.S.: On the new API-Documentati
This reproduces even on http://search.twitter.com. If you try to
filter to "en" only results you get back 0 items for most queries.
Select "try all languages" from the search portal or remove "lang=en"
from your API query and you get results for your queries (most of
which are in english.)
What's