Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
bang cong » dang cong, bang song, hang cong
nhan cua » nhat cua, nhan luc, nhan su
cua bang » chua bang, cua ban, cua dang
cong tan » cong tac, cong san, cong thanh
thi bao » thi hao, thi ba, tai bao
thi hai » thi mai, thi hanh

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: doc ((chieu xanh) OR (chieu sach)) - doanh nhan cua bang cong tan ((thi bao) OR (thi hai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu xanh) OR (chieu sach)) - doanh nhan cua bang cong tan ((thi bao) or (thi hai))~".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu xanh) OR (chieu sach)) - doanh nhan cua bang cong tan ((thi bao) or (thi hai))*.