Perhaps you should try some spelling variations:
presentado » presentan, presented, presentar, presentedo, presenteado
presenta » presente, presentea
presentaron » presenteron, presentacion, presentation, presentan, presentearon
presentada » presenteda, presentan, presented, presentar, presenteada
presentera » presentara, presenter, presenterait, presenteera
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 presentaron) OR (presentada OR presentera)) OR present))~.
• Adding a wildcard symbol may retrieve word variants: (presentado or (((presenta or presentaron) or (presentada or presentera)) or present))*.