Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thuong can » thuong han, thuong lan, thuong con
tranh ban » trinh ban, tranh hang, tranh luan
ban cong » bang cong, van cong, phan cong
cong tan » cong tac, cong san, cong thanh
tran ban » tran van, toan ban, tran bai
can ban » van ban, 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: hoc ((chieu xanh) OR (chieu sach)) - thanh thuong can ban cong tan ((tran ban) OR (tranh ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sach)) - thanh thuong can ban cong tan ((tran ban) or (tranh ban))~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sach)) - thanh thuong can ban cong tan ((tran ban) or (tranh ban))*.