Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
khong cong » thong cong, chong cong, khong con
khong cang » thong cong, hong bang, khong dung
chinh cua » chinh ca, chinh sua, hinh cua
dang van » hoang van, hang va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh chinh cua ((khong cong) or (khong cang)) dang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh chinh cua ((khong cong) OR (khong cang)) dang van ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh chinh cua ((khong cong) or (khong cang)) dang van ban*.