Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu lang » chieu sang, hieu quang, nhieu tang
trung ha » trung hoc, trung tam, trung cap
ha nhung » hoa nhung, hay nhung, pha nhung
cong san » cong tac
ho hieu » ho chieu, hoi hieu, nho hieu
hang ca » hang va, hang tai, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - thanh trung ha nhung ((cong ty) or (cong san)) ((nang cao) or (hang ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh trung ha nhung ((cong ty) OR (cong san)) ((nang cao) OR (hang ca)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh trung ha nhung ((cong ty) or (cong san)) ((nang cao) or (hang ca))*.