Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
hanh doanh » hang doanh, chinh doanh, kinh doanh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
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 - ((hanh doanh) OR (doanh doanh)) nhan ((nhung cong) or (thong cong)) dan gian cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((hanh doanh) OR (doanh doanh)) nhan ((nhung cong) OR (thong cong)) dan gian cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - ((hanh doanh) OR (doanh doanh)) nhan ((nhung cong) or (thong cong)) dan gian cau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((hanh doanh) OR (doanh doanh)) nhan ((nhung cong) or (thong cong)) dan gian cau*.