Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politicas publicas.", "serie politicas publicad."
"elite politica publicas." » "elite politicas publicas.", "elite politica publica.", "elite politica publicaciones.", "elites politicas publicas.", "etica politica publicas.", "entre politica publicas."
"sobre politico publico." » "sobre politica publica.", "sobre politico republicano.", "sobre politicos republica.", "sobre politica publico.", "sobre politicas publico.", "hombre politico publico."

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