Perhaps you should try some spelling variations:
"entre politica publicas." » "entre politica publicaciones.", "sobre politica publicas."
"elite politicas publicas." » "elites politicas publicas.", "elite politica publicas.", "elite politico publicas."
"serie politica publica." » "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."

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