Perhaps you should try some spelling variations:
presentado » presentan, presented, presentar, presentedo, presenteado
presenta » presente, presentea
presentada » presenteda, presentan, presented, presentar, presenteada
presentaron » presenteron, presentation, presentan, presentarse, presentearon
presentacion » presentecion, presenteacion
present » presente

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (presentado OR (((presenta OR presentada) OR (presentaron OR presentacion)) OR present))~.
• Adding a wildcard symbol may retrieve word variants: (presentado or (((presenta or presentada) or (presentaron or presentacion)) or present))*.