Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
tranh quan » tranh quang, trinh quan, tranh luan
quan nhung » qua nhung, cua nhung, luan chung
cong tinh » cong trinh, long tinh, cong thanh
cong vinh » cong trinh, trong vinh, cong viec
toan ban » van 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)) - canh tranh quan nhung ((cong tinh) OR (cong vinh)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sach)) - canh tranh quan nhung ((cong tinh) or (cong vinh)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sach)) - canh tranh quan nhung ((cong tinh) or (cong vinh)) toan ban*.