Perhaps you should try some spelling variations:
presentado » presentan, presented, presentar, presentedo, presenteado
presentaron » presentacion, presentation, presentan, presenteron, presentearon
presenta » presente, presentea
presentadasa » presentedasa, presentadas, presentada, presentados, presenteadasa
presentaba » presenteba, presentaban, presentada, presentara, presenteaba
present » presente

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((presentado OR presentaron) OR (((presenta OR presentadasa) OR presentaba) OR present))~".
• Adding a wildcard symbol may retrieve word variants: ((presentado OR presentaron) OR (((presenta OR presentadasa) OR presentaba) OR present))*.