Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
tuan cao » juan cao, quang cao, thuan cam
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 - ((thanh trung) OR (thanh cong)) cua nhung cong vang ((tuan cao) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((thanh trung) or (thanh cong)) cua nhung cong vang ((tuan cao) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((thanh trung) or (thanh cong)) cua nhung cong vang ((tuan cao) OR (toan cao))*.