Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
anh xquang » anh quang, anh quan, anh xuan
tran phung » tran phuong, trang phung, tran hung
doi chieu » doc hieu, doi chi, mot chieu
cuong bai » uong bi, cuong ma
cong bai » cong hai, cung bai, cong ba
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((nhanh quang) OR (anh xquang)) tran phung ((cong bai) OR (cuong bai)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((nhanh quang) or (anh xquang)) tran phung ((cong bai) OR (cuong bai)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((nhanh quang) or (anh xquang)) tran phung ((cong bai) OR (cuong bai)) toan cau*.