Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua, manh cua
luong tap » luong tai, cuong tap, luong tham
cua bang » chua bang, cua ban, cua dang
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban

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: doi ((chieu xanh) OR (chieu sach)) - canh tranh cua bang ((cong tan) OR (luong tap)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) OR (chieu sach)) - canh tranh cua bang ((cong tan) or (luong tap)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) OR (chieu sach)) - canh tranh cua bang ((cong tan) or (luong tap)) toan tap*.