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

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