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
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap
ban cau » bang cau, ban can, van cau

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 nhung ((cong san) or (cong tac)) ((ban cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh cua nhung ((cong san) OR (cong tac)) ((ban cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh cua nhung ((cong san) or (cong tac)) ((ban cau) or (toan cau))*.