Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu sach » hieu cach, dien sach, hieu cac
danh cong » dang cong, hanh cong, anh cong
cong hung » cong chung, cong huong, cong dung
pho danh » kho danh, cho doanh, khao danh
hung dan » huong dan, dung dan, tung dan
dan pha » dan phan, dan pho, ban pha
pha tap » pham tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu sach) or (chieu sach)) - thanh pho danh cong hung dan pha tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu sach) OR (chieu sach)) - thanh pho danh cong hung dan pha tap*.