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, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
van van » van ban, tan van, san van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh trinh cua nhung cong ((van van) or ((luan OR lan) van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trinh cua nhung cong ((van van) OR ((luan OR lan) van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh trinh cua nhung cong ((van van) or ((luan OR lan) van)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trinh cua nhung cong ((van van) or ((luan OR lan) van)) ban*.