Perhaps you should try some spelling variations:
presentado » presentar, presentacion, presentedo
presented » presente, present
presentaron » presentacion, presentation, presentarse, presenteron
presentane » presentare, presentant, presentase, presentee, presente, presentacione, presentene
presentan » presente, present, presentacion, presenten
presenta » 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 presented) OR ((presentaron OR (presentane OR presentan)) OR presenta))~.
• Adding a wildcard symbol may retrieve word variants: ((presentado or presented) or ((presentaron or (presentane or presentan)) or presenta))*.