Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
tieu sach » chieu sach, dien sach, te sach
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan ban » van ban
lang va » lang van, hang va, lang ha
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - nhanh lang va nang ((cong dan) or (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - nhanh lang va nang ((cong dan) OR (cong san)) toan ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - nhanh lang va nang ((cong dan) or (cong san)) toan ban*.