Buyers tighten spending, businesses get headaches during Tết season stockbot 0 20 01.03 11:30 https://vietnamnews.vn/economy/1638774/buyers-tighten-spending-busines… + 3 https://vietnamnews.vn/rss/economy.rss + 6 To increase sales, businesses must find ways to diversify sales methods, product types, and implement promotional programmes.