Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh hung » thanh huong, thanh trung, thanh cong
thanh tung » thanh cong
hieu manh » hieu nganh, dieu hanh, hien hanh
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 ((hieu manh) or (chieu xanh)) - hanh doanh ((thanh hung) OR (thanh tung)) cong dan gian cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - hanh doanh ((thanh hung) OR (thanh tung)) cong dan gian cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (chieu xanh)) - hanh doanh ((thanh hung) OR (thanh tung)) cong dan gian cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - hanh doanh ((thanh hung) OR (thanh tung)) cong dan gian cau*.