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