Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hieu xanh » chieu xanh, hieu manh, hieu nganh
doanh cua » doanh luan
cua nhung » va nhung
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (chieu sach)) - doanh doanh cua nhung cong tac phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu sach)) - doanh doanh cua nhung cong tac phan tu.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (chieu sach)) - doanh doanh cua nhung cong tac phan tu*.