Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
hoc chieu » hoc thieu, ho chieu, hoc hien
tung khoa » tuong khoa, trung khoa, dung khoa
khoa dung » hoc dung, khoa cong
trong san » trong cac, dong san, trong ca
cong san » cong tac
than cau » toan cau, phan cau, than cap
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: hoc chieu sach - thanh tung khoa dung ((trong san) OR (cong san)) ((than cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - thanh tung khoa dung ((trong san) OR (cong san)) ((than cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - thanh tung khoa dung ((trong san) OR (cong san)) ((than cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - thanh tung khoa dung ((trong san) OR (cong san)) ((than cau) or (toan tap))*.