Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
chinh tham » chinh nham, chinh tai, hinh thai
tham dung » pham dung, tham cung, tham nhung
dung cong » dung trong
cong van » cong vang, cong san, song van
tan cao » toan cao, tao cao, tan ca
tay cao » tao cao, tay co, toan cao

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 (chinh sach)) - hanh chinh tham dung cong van ((tan cao) OR (tay cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - hanh chinh tham dung cong van ((tan cao) or (tay cao))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - hanh chinh tham dung cong van ((tan cao) or (tay cao))*.