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
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
cong van » cong vang, song van, cong tan
cong san » cong tac
chat cao » chat co, chat bao, chat cam
chat cho » chat co, chat thom, cap cho

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