Perhaps you should try some spelling variations:
presentado » presented, presentacion, presenteado, presentedo
presentan » presente, presentacion, presentean, presenten
presentaron » presentacion, presentation, presentarse, presentarseon, presenteon, presentedon, presentearon, presenteron
presenteane » presentedans, presenten, presentent, presenteeane
presentar » presentarse, presente, presented, presentear, presenter
present » presente
presenta » presentea, 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 presentan) OR ((presentaron OR (presenteane OR presentar)) OR (present OR presenta)))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((presentado or presentan) or ((presentaron or (presenteane or presentar)) or (present OR presenta)))~".
• Adding a wildcard symbol may retrieve word variants: ((presentado or presentan) or ((presentaron or (presenteane or presentar)) or (present OR presenta)))*.