Perhaps you should try some spelling variations:
sanctioning administrative » sancion administrativa, sustaining administrative, sanciones administrativas
crisis economicas » crisis economica
bases economicas » areas economicas, bases tecnologicas, bases biologicas
area economica » areas economica, areas economicas, la economica
zona economica » zonas economicas, teoria economica

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

• Performing a fuzzy search may retrieve terms with similar spellings: sanctioning administrative ((((area economica) or (zona economica))) or (((bases economicas) OR (crisis economicas)))) del (derecho or derechos)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sanctioning administrative ((((area economica) OR (zona economica))) OR (((bases economicas) OR (crisis economicas)))) del (derecho OR derechos)*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "sanctioning administrative ((((area economica) or (zona economica))) or (((bases economicas) OR (crisis economicas)))) del (derecho or derechos)*".