Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung hung » trung dung, trong hung, truong chung
doi chieu » doc hieu, doi chi, mot chieu
ban tieng » van tien, ban tinh, va tieng
hung cong » nhung cong, hung cuong, phung cong
cong tap » cuong tap, cong tac, cong tan
quan cau » quang cao, toan cau, quan ha

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 - ((anh tieng) or (ban tieng)) trung hung cong tap ((quan cau) or (nang cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((anh tieng) OR (ban tieng)) trung hung cong tap ((quan cau) OR (nang cao)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((anh tieng) or (ban tieng)) trung hung cong tap ((quan cau) or (nang cao))*.