Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
hieu manh » hieu nganh, dieu hanh, hien hanh
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
van phan » van phong, van thanh, luan phan
va phan » va phat, va phap, hoa phan

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 ((hieu manh) OR (chieu xanh)) - doanh doanh cua thong cong ((va phan) OR (van phan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) OR (chieu xanh)) - doanh doanh cua thong cong ((va phan) or (van phan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) OR (chieu xanh)) - doanh doanh cua thong cong ((va phan) or (van phan)) cau*.