Perhaps you should try some spelling variations:
thanh phuong » thanh huong, thanh chuong, khanh phong
phuong cham » phuong phap, phuong thao
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, mot chieu
dung dung » ung dung, dung ung, dung dong
dung cong » dung trong
ban cau » bang cau, ban can, van cau

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 phuong cham ((dung dung) or (dung cong)) van ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh phuong cham ((dung dung) OR (dung cong)) van ban cau*.