Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
duong cong » dung cong, luong cong, duong trong
trinh cua » tinh cua, trinh luat, trinh quan
cua duong » cua dong, cua huong, qua duong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, thanh chau, thanh mau
than cap » khan cap, thanh lap, thanh cac
phan cau » phan dau, phan cac, phan tu

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 duong cong tan ((((than cau) OR (than cap))) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh cua duong cong tan ((((than cau) OR (than cap))) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh trinh cua duong cong tan ((((than cau) OR (than cap))) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh cua duong cong tan ((((than cau) OR (than cap))) or (phan cau))*.