Perhaps you should try some spelling variations:
presented » presente, presenta, presenteed, presentaed
presentan » presenta, presente, presentacion, presentean, presentaan
presents » presente, presenta, presentes, presentas
presentada » presentado, presenta, presentar, presenteada, presentaada
presentaea » presentara, presentata, presentadas, presenteaea, presentaaea
presentaba » presentaban, presentara, presentadas, presenteaba, presentaaba
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: (presented OR (((presentan OR (presents OR presentada)) OR (presentaea OR presentaba)) OR present))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(presented or (((presentan or (presents or presentada)) or (presentaea OR presentaba)) or present))~".
• Adding a wildcard symbol may retrieve word variants: (presented or (((presentan or (presents or presentada)) or (presentaea OR presentaba)) or present))*.