Perhaps you should try some spelling variations:
presentada » presentado, presenta, presenteada, presentaada
presented » presente, presenta, presenteed, presentaed
presentaron » presentacion, presentation, presentarse, presentaon, presentarseon, presenteon, presentearon, presentaaron
presentaran » presentaban, presentara, presentarse, presentaan, presentarsean, presentean, presentearan, presentaaran
presentean » presenten, presenteen, presentedans, presenteean, presentaean
presentan » presenta, presente, presentacion, presentean, presentaan
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: (presentada OR ((presented OR ((presentaron OR ((presentaran OR presentean) OR presentan)) OR presentar)) OR present))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(presentada or ((presented or ((presentaron or ((presentaran OR presentean) or presentan)) or presentar)) or present))~".
• Adding a wildcard symbol may retrieve word variants: (presentada or ((presented or ((presentaron or ((presentaran OR presentean) or presentan)) or presentar)) or present))*.