Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
phong cham » phuong cham, phong kham, phong chay
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
dung dan » dung dat, dung san, tung dan
dan thuc » dan toc, am thuc
van dan » van ban, ban dan, van dao

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 - khanh phong cham ((dung dan) or (dung cong)) van dan thuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - khanh phong cham ((dung dan) OR (dung cong)) van dan thuc*.