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, hang cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
trinh va » trinh van, trinh vat, trinh ve
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 va ((nhung cong) or (dung cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh va ((nhung cong) OR (dung cong)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trinh va ((nhung cong) or (dung cong)) dan toan ban*.