Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
hieu xanh » chieu xanh, hieu manh, hieu nganh
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
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 sang)) - doanh doanh cua thong cong tac phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu sang)) - doanh doanh cua thong cong tac phan tu.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (chieu sang)) - doanh doanh cua thong cong tac phan tu*.