Perhaps you should try some spelling variations:
chien thang » chien thuong, chien chong, hien trang
hanh tranh » hanh trinh, hanh trang, lanh tranh
chung cong » nhung cong, chong cong, phung cong
hoc chien » hoc hien, hoach chien, hoc chuyen
cua chung » cua nhung, luan chung, luat chung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van 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 chien thang - ((hanh tranh) or (canh tranh)) cua chung cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chien thang - ((hanh tranh) OR (canh tranh)) cua chung cong van toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chien thang - ((hanh tranh) or (canh tranh)) cua chung cong van toan ban*.