Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
doi chieu » doc hieu, doi chi, ho chieu
hanh dung » thanh dung, anh dung, hanh dong
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
cong ban » cong bang, cong san, cong tan
hang tai » hang va, dung tai

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