Perhaps you should try some spelling variations:
presented » presente, presenta, presentan, presenteed, presentaed
presentaed » presentando, presentasen, presente, presenteaed, presentaaed
presenteado » presentado, presentada, presentando, presenteeado, presentaeado
presentaron » presentacion, presentation, presentan, presentaon, presentanon, presentarseon, presentearon, presentaaron
presenten » presente, presentan, presentes, presenteen, presentaen
presentar » presenta, presentan, presentarse, presentear, presentaar
present » presente, presenta

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: (((presented OR presentaed) OR presenteado) OR ((presentaron OR (presenten OR presentar)) OR present))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((presented OR presentaed) or presenteado) or ((presentaron or (presenten or presentar)) or present))~".
• Adding a wildcard symbol may retrieve word variants: (((presented OR presentaed) or presenteado) or ((presentaron or (presenten or presentar)) or present))*.