Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
tran chau » tranh chap, tran huu
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tran cau » toan cau, ran cau, trang mau
tra cau » tra sau, ta cau, tra cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh trinh cua dung cong tan ((((tran cau) or (tra cau))) or (tran chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh cua dung cong tan ((((tran cau) OR (tra cau))) OR (tran chau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh cua dung cong tan ((((tran cau) or (tra cau))) or (tran chau))*.