Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh dung » thanh dung, anh dung, hanh dong
cua khong » hua khong, cua phuong, cua thuong
cong van » cong vang, cong san, song van
vat ban » van ban, vat ran, bat ban
va ban » van ban, va bai, va bao

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 dung ((suat thong) or (cua khong)) cong van ((vat ban) OR (va ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh dung ((suat thong) OR (cua khong)) cong van ((vat ban) OR (va ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh dung ((suat thong) or (cua khong)) cong van ((vat ban) OR (va ban))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh dung ((suat thong) or (cua khong)) cong van ((vat ban) OR (va ban))*.