Perhaps you should try some spelling variations:
presentation » presentacion, presenteation, presentaation
presentado » presenta, presented, presentar, presenteado, presentaado
presentan » presenta, presente, presentacion, presentean, presentaan
presentecion » presentacion, presentacione, apresentacion, presenteecion, presentaecion
presentea » presentera, presente, presenta, presenteea, presentaea
present » presente, presenta

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (presentation or ((presentado or (presentan or presentecion)) or (presentea or present)))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (presentation OR ((presentado OR (presentan OR presentecion)) OR (presentea OR present))).
• Adding a wildcard symbol may retrieve word variants: (presentation or ((presentado or (presentan or presentecion)) or (presentea or present)))*.