Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh trinh » canh tranh
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
san thanh » ban thanh, van thanh, son thanh
thanh lap » thanh san, phan lap, thanh hai
cong san » cong tac

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) or (chinh sach)) - ((hanh trinh) OR (hanh chinh)) cua nhung cong san thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - ((hanh trinh) OR (hanh chinh)) cua nhung cong san thanh lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chinh sach)) - ((hanh trinh) OR (hanh chinh)) cua nhung cong san thanh lap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - ((hanh trinh) OR (hanh chinh)) cua nhung cong san thanh lap*.