Perhaps you should try some spelling variations:
presentan » presenta, presente, presentacion, presentean, presentaan
presentesen » presentes, presenten, presentee, presenteesen, presentaesen
presentaban » presentaron, presentada, presentadas, presenteaban, presentaaban
presentaaban » presentaran, presentaba, presentarian, presenteaaban, presentaaaban
presentear » presentar, presenter, presente, presenteear, presentaear
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: (presentan or ((presentesen or ((presentaban OR presentaaban) or presentear)) or present))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (presentan OR ((presentesen OR ((presentaban OR presentaaban) OR presentear)) OR present))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(presentan or ((presentesen or ((presentaban OR presentaaban) or presentear)) or present))*".