Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh manh » hanh mang, lanh manh, hoang manh
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, tam than, pham toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh manh ((cua dung) OR (cua dang)) trong ((tac toan) OR (tam toan)) tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh manh ((cua dung) or (cua dang)) trong ((tac toan) OR (tam toan)) tap~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh manh ((cua dung) or (cua dang)) trong ((tac toan) OR (tam toan)) tap*.