Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cuong cong » cong cong, luong cong, duong cong
hoc thanh » hoc nhanh, hoan thanh, ha thanh
van thanh » ban thanh, van tuan
thanh cau » thanh chau, thanh mau, nhanh cau
hoc phan » hoc dan, hoc pho
cong van » cong vang, cong san, song van
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) OR (hoc phan)) cuong cong van thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((trieu tinh) OR (chieu sach)) - thanh ((hoc thanh) OR (hoc phan)) cuong cong van thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((trieu tinh) or (chieu sach)) - thanh ((hoc thanh) OR (hoc phan)) cuong cong van thanh cau".
• Adding a wildcard symbol may retrieve word variants: theo ((trieu tinh) or (chieu sach)) - thanh ((hoc thanh) OR (hoc phan)) cuong cong van thanh cau*.