Perhaps you should try some spelling variations:
canh thanh » canh tranh, danh thanh, anh thanh
khang cong » hang cong, thanh cong, dang cong
thanh van » thanh san, thanh toan, thanh phan
van khang » van khanh, van thanh, van quang
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan tu
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (toc thieu)) xanh - canh thanh van khang cong dan ((phan cau) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (toc thieu)) xanh - canh thanh van khang cong dan ((phan cau) OR (hang dau)).
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (toc thieu)) xanh - canh thanh van khang cong dan ((phan cau) or (hang dau))*.