Perhaps you should try some spelling variations:
autoridades administrativas » actividades administrativas, actividad administrativa
gestion administrative » gestion administrativa, gestion administrativo, gestao administrativa
impacto psicologico » impacto psicosocial, impacto tecnologico, aspectos psicologicos
administrative area » administrativa area, administrativas area, administrative appeal
impacto ecologico » impacto tecnologico, impacto economico, impacto mercadologico
area economico » area economica, areas economica, areas economicas
economico del » economico de
del derechos » de derechos, el derechos, en derechos

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( autoridades administrativas ((impacto ecologico) OR (impacto psicologico)) del derecho ) or ( gestion administrative area economico del derechos ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( autoridades administrativas ((impacto ecologico) OR (impacto psicologico)) del derecho ) OR ( gestion administrative area economico del derechos ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( autoridades administrativas ((impacto ecologico) OR (impacto psicologico)) del derecho ) or ( gestion administrative area economico del derechos ))*".