Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, hieu lang
tranh qua » tranh cua, thanh qua, trinh qua
dung cong » dung trong
qua dung » quang dung, su dung, qua song
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 ((chieu xanh) or (((nhieu tang) or (chieu sang)))) - canh tranh qua dung cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (((nhieu tang) OR (chieu sang)))) - canh tranh qua dung cong van toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (((nhieu tang) or (chieu sang)))) - canh tranh qua dung cong van toan ban*.