Perhaps you should try some spelling variations:
presentan » presenta, presentacion, presentaan
presentaron » presentacion, presentation, presentarse, presentaaron
presenten » presentes, presenting, presenta, presentaen
presented » presenta, presentaed
presentear » presentar, presenter, presenta, presentaear
presente » presentae
present » 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: ((presente OR presentan) OR ((presentaron OR ((presenten OR presented) OR presentear)) OR present))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((presente or presentan) or ((presentaron or ((presenten OR presented) or presentear)) or present))~".
• Adding a wildcard symbol may retrieve word variants: ((presente or presentan) or ((presentaron or ((presenten OR presented) or presentear)) or present))*.