Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
thao cua » thai cua, than cua, tho cua
cua tinh » cua sinh, va tinh, ha tinh
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: thao cua tinh - hanh tranh cua ban tong ((dan toan) OR (((thanh toan) OR (tinh toan)))) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thao cua tinh - hanh tranh cua ban tong ((dan toan) or (((thanh toan) OR (tinh toan)))) cau~".
• Adding a wildcard symbol may retrieve word variants: thao cua tinh - hanh tranh cua ban tong ((dan toan) or (((thanh toan) OR (tinh toan)))) cau*.