Perhaps you should try some spelling variations:
presented » presente, present
presentan » presente, present, presentacion, presenten
presentean » presenten, presenteen, presentedans
presentadas » presentado, presentados, presentars, presentedas
presentaba » presentaban, presentara, presentaran, presenteba
presentada » presentado, presentar, presenteda
presenta » presente

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

• Performing a fuzzy search may retrieve terms with similar spellings: (presented or ((((presentan or presentean) or presentadas) or (presentaba OR presentada)) or presenta))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (presented OR ((((presentan OR presentean) OR presentadas) OR (presentaba OR presentada)) OR presenta))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(presented or ((((presentan or presentean) or presentadas) or (presentaba OR presentada)) or presenta))*".