Perhaps you should try some spelling variations:
sanciones administrative » sanciones administrativas, sancion administrativa, sanctioning administrative
bases tecnologicas » base tecnologica, bases metodologicas, bases biologicas
crisis economicas » crisis economica
bases economicas » areas economicas, bases biologicas, areas economica
area economica » areas economica, areas economicas, zona economica

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

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