Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicaciones."
"elites politicas publica." » "elites politicas publicas.", "elites politicas publicad.", "elites politica publica.", "limites politicos publica.", "las politicas publica.", "ideas politicas publica."
"serie politica al." » "serie politicas al.", "serie policiaca al.", "elite politica al.", "serie politica a.", "serie politica _.", "serie politica con."

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