Perhaps you should try some spelling variations:
presentado » presenta, presentan, presented, presenteado, presentaado
prestadores » prestadoras, prestadora
prestara » prestar, prestada, prestadora
presentaron » presentacion, presentation, presentan, presentearon, presentaaron
presentearon » presentaran, presenciaron, presentacon, presenteearon, presentaearon
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: ((presentado OR prestadores) OR (prestara OR ((presentaron OR presentearon) OR present)))~.
• Adding a wildcard symbol may retrieve word variants: ((presentado or prestadores) or (prestara or ((presentaron or presentearon) or present)))*.