Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cua truong » cua trung, xuan truong, cac truong
cua nhung » va nhung
tan thanh » tran thanh, tang thanh, toan thanh
thanh lap » thanh san, phan lap, thanh hai
cong tan » cong tac, cong san, cong thanh

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 sach - thanh trung ((cua truong) or (cua nhung)) cong tan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung ((cua truong) OR (cua nhung)) cong tan thanh lap.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung ((cua truong) or (cua nhung)) cong tan thanh lap*.