Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
chau tinh » cuu tinh, ha tinh, cua tinh
tong luan » tang luan, dung luan, hang luan
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
van cau » van dau, van hau, van chat

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: ho ((hieu manh) OR (chau tinh)) - hanh doanh ((cua dung) OR (cua dang)) tong luan van cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chau tinh)) - hanh doanh ((cua dung) OR (cua dang)) tong luan van cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chau tinh)) - hanh doanh ((cua dung) OR (cua dang)) tong luan van cau*.