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 CPC, % of Media Spend, flat_rate, CPA on channels such as Search, Social, Email, Mobile Display. A majority of their inventory are in countries such as India, Canada, United States, Singapore