Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
hang ban » hang luan, hang va, hang tai
cua dong » chua dong, cua cong, cua dang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cau » toan cau, phan cau, than cap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hang ban cua dong ((cong dan) or (cong san)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hang ban cua dong ((cong dan) OR (cong san)) than cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hang ban cua dong ((cong dan) or (cong san)) than cau*.