Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
nhung cong » thong cong, nhung don, nhung lang
trinh cua » tinh cua, trinh luat, trinh quan
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
van than » van thanh, van thang, van tuan
than cau » toan cau, phan cau, than cap

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