Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
nhung cong » dung cong, thong cong, hang cong
chai tinh » chau tinh, thai tinh, cham tinh
doanh cua » doanh luan
cua nhung » va nhung
chi tinh » chi minh, chi binh, cha tinh
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi tinh) or (chai tinh)) - doanh doanh cua nhung cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi tinh) OR (chai tinh)) - doanh doanh cua nhung cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi ((chi tinh) or (chai tinh)) - doanh doanh cua nhung cong san ((toan cao) or (toan ban))*.