Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
cua dong » chua dong, cua cong, cua nong
cua dang » cua cong, cua ban
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu

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 - canh tranh ((cua dong) or (cua dang)) ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - canh tranh ((cua dong) OR (cua dang)) ((cong dan) OR (cong tan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - canh tranh ((cua dong) or (cua dang)) ((cong dan) or (cong tan)) toan ban*.