Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
doanh cua » doanh luan
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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 chieu tinh - doanh doanh cua ((nhung cong) OR (dang cong)) ((dan toan) OR (dan than)) cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - doanh doanh cua ((nhung cong) or (dang cong)) ((dan toan) or (dan than)) cau*.