The Wayback Machine - https://web.archive.org/web/20130820204044/https://dev.twitter.com/issues/1180

Issue #1180: Search Results Not Returned - Possibly Due to '®' Character in App. Name

https://api.twitter.com/1.1/search/tweets.json?q=the%20source%3Aadobe%C2%AE_social doesn't return any results even though there have been recent tweets sent via 'Adobe® Social'.