Perhaps you should try some spelling variations:
tang luong » nang luong, tang cuong, hang luong
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
trung cap » truong cao
luong va » dung va
than cap » khan cap, thanh lap, thanh cac
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - thanh ((trung cap) or (trung tam)) tang luong va ((than cap) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - thanh ((trung cap) OR (trung tam)) tang luong va ((than cap) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - thanh ((trung cap) or (trung tam)) tang luong va ((than cap) or (phan cau))*.