Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
doanh doanh » toan doanh, doanh hoan, doanh thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
cong luan » tong luan, cong tuan, dong luan
luan phan » luan van, luan hoan
hoc hieu » hoc thieu, hoc hien, doc hieu
phan dau » phan tu, hang dau
va dung » van dung, va duong, vat dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((doanh doanh) OR (chinh doanh)) va dung cong luan phan dau~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((doanh doanh) or (chinh doanh)) va dung cong luan phan dau*.