Perhaps you should try some spelling variations:
dong thanh » truong thanh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu lang » chieu sang, hieu quang, nhieu tang
thanh lua » thanh luu, thanh qua, tranh luan
dang cong » dung cong
lua dang » cua dang, lua sang, luan nang
cong san » cong tac
san phi » san phu, san chi, san pham
phi phi » chi phi, phi thi, thi phi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu lang) or (chieu tinh)) - dong thanh lua dang cong san phi phi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (chieu tinh)) - dong thanh lua dang cong san phi phi.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (chieu tinh)) - dong thanh lua dang cong san phi phi*.