Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
chinh quan » chinh luan, chinh quyen, chinh ngan
cong cong » cong dong, trong cong, dung cong
tac than » tac thanh, tam than, tac nhan
cac nhan » ca nhan, cac nha, cam nhan

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 quan ((cong cong) or (dung trong)) ((tac than) or (cac nhan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh chinh quan ((cong cong) OR (dung trong)) ((tac than) OR (cac nhan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh chinh quan ((cong cong) or (dung trong)) ((tac than) or (cac nhan)) cau*.