Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
theo sach » thuoc sach, te sach, theo lich
chinh han » chinh phan, chin han, chinh ban
han nhung » hanh nhung, hon nhung, ban nhung
cong vang » cong lang, cong quang, cong ngang
tuan cau » toan cau, quan cau, thuan cam
tuan cu » tuan tu, quan cua, tuan thu

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: hoc ((theo sach) OR (chieu sach)) - hanh chinh han nhung cong vang ((tuan cau) OR (tuan cu))~.
• Adding a wildcard symbol may retrieve word variants: hoc ((theo sach) or (chieu sach)) - hanh chinh han nhung cong vang ((tuan cau) or (tuan cu))*.