Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
phong thuc » phuong thuc, phong tuc, phong thuy
cong cong » cong dong, trong cong, dung cong
cong lang » cong vang, cong luong, cong quang
ho chieu » theo chieu, hoc thieu, mot chieu
anh dang » anh dong, anh dung, anh bang
dang cua » dung cua, dong cua, mang cua
cua dang » cua cong, cua ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - anh dang cua dang ((cong cong) or (cong lang)) phong thuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - anh dang cua dang ((cong cong) OR (cong lang)) phong thuc*.