Perhaps you should try some spelling variations:
presented » presente, present
presentan » presente, present, presentacion, presenten
presentado » presentar, presentacion, presentation, presentedo
presentaba » presentaban, presentada, presentadas, presenteba
presentara » presentar, presentada, presentarse, presentera
presenta » presente

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: (presented OR (((presentan OR presentado) OR (presentaba OR presentara)) OR presenta))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(presented or (((presentan or presentado) or (presentaba OR presentara)) or presenta))~".
• Adding a wildcard symbol may retrieve word variants: (presented or (((presentan or presentado) or (presentaba OR presentara)) or presenta))*.