Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tang » cong thang, cong lang, cong vang
thanh cha » thanh ha, thanh nha, thanh phan
hoi hieu » hoi phieu, hoi tieu, moi hieu
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - canh tranh cua nhung ((cong tan) or (cong tang)) thanh cha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - canh tranh cua nhung ((cong tan) OR (cong tang)) thanh cha*.