Perhaps you should try some spelling variations:
doi chieu » doc hieu, ho chieu, mot chieu
hanh dinh » thanh dinh, hinh dinh, hanh tinh
dinh cuu » dinh chi
cuu cong » cua cong, thu cong, cac cong
dong dan » dong danh, duong dan, dong san
toan cao » toan ban
toan tap » toan ban
doi chi » doi khi

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: ((doi chieu) OR (doi chi)) sach - hanh dinh cuu cong dong dan ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doi chi)) sach - hanh dinh cuu cong dong dan ((toan cao) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doi chi)) sach - hanh dinh cuu cong dong dan ((toan cao) or (toan tap))*.