Perhaps you should try some spelling variations:
presentados » presentado, presentadas, presentada, presenteados, presentaados
presentan » presenta, presente, presentean, presentaan
presentaron » presentation, presentarse, presentar, presentearon, presentaaron
presentae » presentare, presentase, presente, presenteae, presentaae
presentacion » presenteacion, presentaacion
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: (presentacion OR (((presentados OR presentan) OR presentaron) OR (presentae OR present)))~.
• Adding a wildcard symbol may retrieve word variants: (presentacion or (((presentados or presentan) or presentaron) or (presentae or present)))*.