Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
duong cong » dung cong, luong cong, duong trong
tranh cua » doanh cua, manh cua
cua duong » cua dong, cua huong, qua duong
thanh ban » thanh san, thanh van, thanh bac
cong tan » cong tac, cong san, cong thanh
than ban » toan ban, than man, nhuan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (chieu sach)) - hanh tranh cua duong cong tan ((than ban) or (thanh ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - hanh tranh cua duong cong tan ((than ban) OR (thanh ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - hanh tranh cua duong cong tan ((than ban) or (thanh ban))*.