Perhaps you should try some spelling variations:
tang luan » dung luan
luan hung » luan chung, lan hung, luan ung
anh tang » anh bang, anh dang, anh nang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan ban » van ban
theo ha » theo phap, theo chu, thep nha
ha tinh » va tinh, may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ha tinh - anh tang luan hung ((cong dan) OR (cong san)) ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ha tinh - anh tang luan hung ((cong dan) OR (cong san)) ((toan ban) OR (toan tap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ha tinh - anh tang luan hung ((cong dan) OR (cong san)) ((toan ban) or (toan tap))*".