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
thao cua » thai cua, than cua, tho cua
cua sinh » hoa sinh, va sinh
ban tong » ban trong, ban tuong, ban thong
dan than » dan chan, ban than, van than

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 sinh - hanh tranh cua ban tong ((dan than) OR (thanh toan)) cau~.
• Adding a wildcard symbol may retrieve word variants: thao cua sinh - hanh tranh cua ban tong ((dan than) or (thanh toan)) cau*.