Feature not in yet, so a SEDE for :Past questions with offered bounty with specific tag.
App Spec :D
12 Can I search my comments using some keyword(s)? jan 7 '13
3 Does a user become a Meta moderator by default the moment when he or she becomes a mod for SO? feb 26 '14
1 What happens if the OP doesn't know English language yet post a question with mere code? [duplicate] mar 19 '14