Perhaps you should try some spelling variations:
"serie politicas publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca publica."
"elite politica publicas." » "elite politicas publicas.", "elite politica publica.", "elite politica publicaciones.", "elites politicas publicas.", "etica politica publicas.", "entre politica publicas."
"sobre politicas pablo." » "sobre politica pablo.", "sobre politicas para.", "sobre politicas paz."

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