Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
cong cong » cong dong, trong cong, dung cong
tan toan » tap toan, van toan, dan toan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh trinh cua cong cong ((tan toan) OR (tan tran)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trinh cua cong cong ((tan toan) OR (tan tran)) cau*.