Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
trung cua » trung tuan, trung cap, dung cua
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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 - hanh ((trung cua) OR (truong cua)) nhung cong san ((toan cau) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh ((trung cua) OR (truong cua)) nhung cong san ((toan cau) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((trung cua) OR (truong cua)) nhung cong san ((toan cau) or (toan tap))*.