Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhan nhung » nhien nhung, tham nhung, gian nhung
nhung cong » dung cong, thong cong, hang cong
cong dan » cong san, cong tan, huong dan
gian cau » gian chau, gian cac, gian cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (dieu hanh)) - hanh doanh nhan nhung cong dan gian cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (dieu hanh)) - hanh doanh nhan nhung cong dan gian cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (dieu hanh)) - hanh doanh nhan nhung cong dan gian cau*.