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
dang nong » dang cong, hang nong, tang nong
thai cua » than cua, tai cuc, dai cua
cua dang » cua cong, cua ban
van than » van thanh, van thang, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thai cua) or (tri cua)) tinh - hanh tranh cua dang nong ((van than) or (thanh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thai cua) OR (tri cua)) tinh - hanh tranh cua dang nong ((van than) OR (thanh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: ((thai cua) or (tri cua)) tinh - hanh tranh cua dang nong ((van than) or (thanh toan)) cau*.