Perhaps you should try some spelling variations:
presentado » presentan, presented, presentacion, presentedo
presentaron » presentacion, presentation, presentan, presentanon, presentarseon, presenteon, presenteron
presenteon » presenten, presenteen, presention
presentane » presentan, presentare, presentant, presentene
presentar » presentan, presentarse, presente, presenter
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 (((presentaron OR presenteon) OR (presentane OR presentar)) OR presenta))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(presentado or (((presentaron OR presenteon) or (presentane or presentar)) or presenta))~".
• Adding a wildcard symbol may retrieve word variants: (presentado or (((presentaron OR presenteon) or (presentane or presentar)) or presenta))*.