Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
khong xuong » khong dung, hong vuong, thong duong
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh doanh » hang doanh, chinh doanh, kinh doanh
luan khong » luan phong, luan phuong, luong khong
hoc chieu » hoc thieu, ho chieu, hoc hien
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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 chieu tinh - ((hanh doanh) OR (doanh doanh)) luan khong xuong ((dan toan) OR (manh toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - ((hanh doanh) OR (doanh doanh)) luan khong xuong ((dan toan) or (manh toan)) ban~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - ((hanh doanh) OR (doanh doanh)) luan khong xuong ((dan toan) or (manh toan)) ban*.