Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh van » tran van, thanh van, tranh ban
trinh van » trinh han, trinh quan, trinh toan
cong hoan » cong hoa, dong hoa, cong san
cong tan » cong tac, cong san, cong thanh
phan dau » phan tu, hang dau
co lieu » cot lieu, co hieu, so lieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: co lieu tinh - canh ((tranh van) or (trinh van)) nhung ((cong tan) or (cong hoan)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co lieu tinh - canh ((tranh van) OR (trinh van)) nhung ((cong tan) OR (cong hoan)) phan dau.
• Adding a wildcard symbol may retrieve word variants: co lieu tinh - canh ((tranh van) or (trinh van)) nhung ((cong tan) or (cong hoan)) phan dau*.