Perhaps you should try some spelling variations:
chiet tach » chieu sach
thanh tung » thanh cong
cua truong » cua trung, xuan truong, xa truong
ho chiet » ho chieu, ho thiet, hoc thiet
cong ban » cong bang, cong san, cong tan
ban can » ban dan, ban hang, ban hanh
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - thanh tung ((cua truong) or (cac truong)) cong ban can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh tung ((cua truong) OR (cac truong)) cong ban can cau.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh tung ((cua truong) or (cac truong)) cong ban can cau*.