Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
tran tuan » tran xuan, tran quang, tran thanh
cong vang » cong lang, cong quang, cong ngang
vang than » sang than, van than, cang thang
than cau » toan cau, phan cau, than cap

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 - thanh ((trung cua) or (tran tuan)) nhung cong vang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh ((trung cua) OR (tran tuan)) nhung cong vang than cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh ((trung cua) or (tran tuan)) nhung cong vang than cau*.