Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
thanh dam » thanh dat, thanh nam, thanh tam
doi hieu » doi chieu, doc hieu, doi hien
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac

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 - canh manh ((cua nhung) or (cua cong)) cong san ((thanh dam) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - canh manh ((cua nhung) OR (cua cong)) cong san ((thanh dam) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - canh manh ((cua nhung) or (cua cong)) cong san ((thanh dam) or (than cap))*.