Perhaps you should try some spelling variations:
thanh cuong » thanh chuong, thanh cong, thanh huong
chieu sach » chinh sach, chiet tach, chieu sang
thanh hoc » thanh hoa, than hoc, thanh ho
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thanh cau » thanh chau, thanh mau, nhanh cau
cong van » cong vang, song van, cong tan
cong san » cong tac
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((trieu tinh) or (chieu sach)) - thanh hoc thanh cuong ((cong van) OR (cong san)) thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((trieu tinh) OR (chieu sach)) - thanh hoc thanh cuong ((cong van) OR (cong san)) thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((trieu tinh) or (chieu sach)) - thanh hoc thanh cuong ((cong van) OR (cong san)) thanh cau".
• Adding a wildcard symbol may retrieve word variants: theo ((trieu tinh) or (chieu sach)) - thanh hoc thanh cuong ((cong van) OR (cong san)) thanh cau*.