Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
hoi hieu » hoi phieu, hoi tieu, moi hieu
cua hang » cua dang, cua nhung, cua cong
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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