Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
than cua » nhan cua, ban cua, gian cua
thai cua » tai cuc, tri cua, dai cua
ban tong » ban trong, ban tuong, ban thong
dan toan » van toan, dan than, manh toan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((than cua) OR (thai cua)) tinh - hanh tranh cua ban tong ((dan toan) OR (thanh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((than cua) OR (thai cua)) tinh - hanh tranh cua ban tong ((dan toan) or (thanh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: ((than cua) OR (thai cua)) tinh - hanh tranh cua ban tong ((dan toan) or (thanh toan)) cau*.