Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong van » cong vang, cong san, song van
tuan cao » toan cao, quang cao, thuan cam
juan cao » quang cao, toan cao, quan cau

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: ho ((chieu sach) OR (chiet tach)) - thanh trung cua nhung cong van ((tuan cao) OR (juan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chiet tach)) - thanh trung cua nhung cong van ((tuan cao) OR (juan cao))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chiet tach)) - thanh trung cua nhung cong van ((tuan cao) OR (juan cao))*.