Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, ho chieu, mot chieu
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
doi chi » doi khi

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

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