Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, mot chieu
thang qua » thong qua, thang mua, thanh qua
thang cua » thong cua, hang cua, than cua
cong doan » cong dan, dong doanh, cong san
cong hoan » cong hoa, dong hoa, cong san
quang tap » quang tay, quang tuan, quang tran

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