We’re experiencing a problem where searches that contain boolean operators (OR, AND) as well as a Geocode parameter are returning no results, when they typically should. Noticed problem earlier around 6-5-2013 10am PST.
Example (working): https://api.twitter.com/1.1/search/tweets.json?q=New+Phone+need+OR+want
Example (occasional fail): https://api.twitter.com/1.1/search/tweets.json?q=New+Phone+need+OR+want&geocode=53.540941,-113.493698,5mi
The last example is interesting, if you call with the browser (adding proper OAuth credentials) and refresh enough times you’ll get results back occasionally.