Perhaps you should try some spelling variations:
presentadas » presentada, presentado, presenteadas, presentaadas
presented » presente, presenta, presentan, presenteed, presentaed
presentaron » presentacion, presentation, presentan, presentaon, presentanon, presentarseon, presentearon, presentaaron
presentar » presenta, presentan, presentarse, presentear, presentaar
presentear » presenter, presente, presenta, presenteear, presentaear
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: (presentadas OR ((presented OR (presentaron OR (presentar OR presentear))) OR present))~.
• Adding a wildcard symbol may retrieve word variants: (presentadas or ((presented or (presentaron or (presentar or presentear))) or present))*.