Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tran thanh » ban thanh, van thanh, quan thanh
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap

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 ((truong thanh) or (tran thanh)) dang ((cong dan) OR (cong tan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh ((truong thanh) OR (tran thanh)) dang ((cong dan) OR (cong tan)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh ((truong thanh) or (tran thanh)) dang ((cong dan) OR (cong tan)) than cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh ((truong thanh) or (tran thanh)) dang ((cong dan) OR (cong tan)) than cau*.