with Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam inventory typically offer pricing models of CPA, flat_rate, CPC, Revshare/ROAS on channels such as Search, Social, Email, Native. A majority of their inventory are in countries such as India, United States, Canada