Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
luat tuong » luat thuong, luat trong, luat huong
luan tuong » luan luong, luat thuong, xuan truong
hoc chieu » hoc thieu, ho chieu, hoc hien
van tan » van tuan, van tai, van thanh

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 trinh ((luat tuong) OR (luan tuong)) dong ((van tan) or (van ban)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trinh ((luat tuong) OR (luan tuong)) dong ((van tan) OR (van ban)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh trinh ((luat tuong) OR (luan tuong)) dong ((van tan) or (van ban)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trinh ((luat tuong) OR (luan tuong)) dong ((van tan) or (van ban)) cau*.