Commented Unassigned: authentication [2372]

can we use more than OAuth in one app so that i can increase the number of request?
second thing, please tell me how many request we can made for searching tweets for any keyword ?
Comments: ** Comment from web user: Mudabbir **

sorry typing mistake,
can we use more than one OAuth in one app so that i can increase the number of request?
second thing, please tell me how many request we can made for searching tweets for any keyword ?