Perhaps you should try some spelling variations:
administrativos tratado » administrativos basados, administrativos adoptados, administrativos emitidos
tratado economico » estado economico, tamano economico, fraude economico
amparo economico » impacto economico, marco economico, ambito economico
economico del » economico de
para economia » para economizar, otra economia, obra economia

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( (actos or actas) administrativos tratado economico del derecho ) or ( gestion administrativa ((amparo economico) or (para economia)) del derecho ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( (actos OR actas) administrativos tratado economico del derecho ) OR ( gestion administrativa ((amparo economico) OR (para economia)) del derecho )).
• Adding a wildcard symbol may retrieve word variants: (( (actos or actas) administrativos tratado economico del derecho ) or ( gestion administrativa ((amparo economico) or (para economia)) del derecho ))*.