Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh quang » nhanh quang, hang quang, huynh quang
doi chieu » doc hieu, doi chi, ho chieu
anh quang » anh xquang, anh quan, nhanh quang
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
cong san » cong tac
phan dau » phan tu, hang dau

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 - ((hanh quang) or (anh quang)) luan dong cong san ((phan dau) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((hanh quang) OR (anh quang)) luan dong cong san ((phan dau) OR (phan lap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((hanh quang) or (anh quang)) luan dong cong san ((phan dau) or (phan lap))*.