Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
cua truong » cua trung, xuan truong, cac truong
hanh dung » thanh dung, anh dung, hanh dong
thanh lap » thanh san, phan lap, thanh hai
dung cua » dung luan, dung cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sang)) - hanh dung cua truong ((cong tac) OR (cong ty)) thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - hanh dung cua truong ((cong tac) OR (cong ty)) thanh lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sang)) - hanh dung cua truong ((cong tac) OR (cong ty)) thanh lap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sang)) - hanh dung cua truong ((cong tac) OR (cong ty)) thanh lap*.