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
xuan trung » xuan truong, quang trung, doan trung
cong san » cong tac
toan cao » toan ban
toan tap » toan ban

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 (xuan trung)) cong san ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung ((cua truong) OR (xuan trung)) cong san ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh trung ((cua truong) or (xuan trung)) cong san ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung ((cua truong) or (xuan trung)) cong san ((toan cao) OR (toan tap))*.