Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
nhan hung » nhanh hung, phan hung, nhan ung
hung cong » nhung cong, hung cuong, phung cong
gian chau » gian cham, gian cua, tran chau
hoc dieu » hoc thieu, hoc hien
cong san » cong tac
gian cau » gian cam, gian cu, giay cau
gian cac » gian dan, gian cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc dieu hanh - doanh doanh nhan hung cong san ((((gian cau) OR (gian chau))) or (gian cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - doanh doanh nhan hung cong san ((((gian cau) OR (gian chau))) OR (gian cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc dieu hanh - doanh doanh nhan hung cong san ((((gian cau) OR (gian chau))) or (gian cac))".
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - doanh doanh nhan hung cong san ((((gian cau) OR (gian chau))) or (gian cac))*.