Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
trinh cua » tinh cua, trinh luat, trinh quan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trinh cua ((nhung cong) or (thong cong)) ((dan than) or (van ban)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh cua ((nhung cong) OR (thong cong)) ((dan than) OR (van ban)) ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trinh cua ((nhung cong) or (thong cong)) ((dan than) or (van ban)) ban*.