Perhaps you should try some spelling variations:
tuan trong » thuan trong, quan trong, tran trong
hieu sach » chieu sach, dien sach, hieu cac
hieu cach » hieu cac, chieu sach, hieu ca
thanh tra » thanh toan, thanh hoa
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu sach) OR (hieu cach)) - ((thanh tra) or (thanh san)) tuan trong cong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu sach) OR (hieu cach)) - ((thanh tra) OR (thanh san)) tuan trong cong dan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu sach) OR (hieu cach)) - ((thanh tra) or (thanh san)) tuan trong cong dan khan cap".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu sach) OR (hieu cach)) - ((thanh tra) or (thanh san)) tuan trong cong dan khan cap*.