Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
cua truong » cua trung, xuan truong, xa truong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tan can » toan can, tan van, ban can
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 chieu sach - thanh tung ((cua truong) OR (cac truong)) cong tan can cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh tung ((cua truong) OR (cac truong)) cong tan can cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung ((cua truong) OR (cac truong)) cong tan can cau*.