Perhaps you should try some spelling variations:
"sobre politicas publicas." » "sobre politicas publicads.", "sobre politica publicas.", "sobre politica publicass."
"elites politicas publica." » "elites politicas publicad.", "elites politica publica.", "elites politica publicas.", "limites politicos publica.", "las politicas publica.", "ideas politicas publica."
"serie politicas al." » "serie policiaca al.", "serie politicas el.", "serie politicas a.", "serie politicos al."

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