Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas."
"elite politico publico." » "elite politica publica.", "elite politica publicas.", "elite politico republicano.", "elite politica publico.", "delito politico publico.", "elites politicas publico."
"sobre politica publico." » "sobre politica publica.", "sobre politica publicas.", "sobre politicas publicas.", "sobre politicas 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: (((("elite politico publico.") OR ("sobre politica publico."))) OR ("serie policiaca publica."))~.
• Removing quotes may allow a broader search: (((( elite politico publico. ) or ( sobre politica publico. ))) or ( serie policiaca publica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("elite politico publico.") or ("sobre politica publico."))) or ("serie policiaca publica."))*.