Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc chieu » hoc thieu, ho chieu, hoc hien
cong luan » tong luan, cong tuan, dong luan
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
chat cao » chat cho, chat bao, chat cam
chat co » thuat co, chat cua, chat deo

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