Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politica publica.", "sobre politica publicaciones.", "sobre politicas publicas."
"serie politicas publicas." » "serie policiaca publicas."
"elite politicas pablo." » "elites politicas pablo.", "elite politica pablo.", "elite politico pablo.", "elite politicas para.", "elite politicas paz."

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: (((("sobre politica publicas.") OR ("serie politicas publicas."))) OR ("elite politicas pablo."))~.
• Removing quotes may allow a broader search: (((( sobre politica publicas. ) or ( serie politicas publicas. ))) or ( elite politicas pablo. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publicas.") or ("serie politicas publicas."))) or ("elite politicas pablo."))*.