Perhaps you should try some spelling variations:
"sobre politico publico." » "sobre politica publica.", "sobre politica publicas.", "sobre politico republicano.", "sobre politica publico.", "sobre politicas publico.", "hombre politico publico."
"limites criticos republica." » "limites juridicos republica.", "limites politicos republica.", "limites eticos republica."
"serie politica pablo." » "serie politicas pablo.", "serie policiaca pablo.", "sobre politica pablo.", "serie politica para.", "serie colica pablo.", "serie politica al."

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 ("limites criticos republica."))) OR ("serie politica pablo."))~.
• Removing quotes may allow a broader search: (((( sobre politico publico. ) or ( limites criticos republica. ))) or ( serie politica pablo. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politico publico.") or ("limites criticos republica."))) or ("serie politica pablo."))*.