Perhaps you should try some spelling variations:
hang doanh » hanh doanh, nhung doanh, van doanh
nhanh song » nhanh dong, nhanh chong, phan song
hieu manh » chieu xanh, hieu nganh, dieu hanh
nhan hung » nhanh hung, phan hung, nhan ung
hoc hieu » hoc thieu, hoc hien, doc hieu
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 - hang doanh ((nhan hung) or (nhanh song)) cong dan gian cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hang doanh ((nhan hung) OR (nhanh song)) cong dan gian cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hang doanh ((nhan hung) or (nhanh song)) cong dan gian cau*.