Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicaciones.", "sobre politica publicaas.", "sobre politico publicoas.", "sobre politicas publicasas."
"serie politicas pabloas." » "serie politicas pablo.", "serie politicas publicas.", "serie politica pablo.", "serie policiaca pabloas."
"elite politica public." » "elite politica publica.", "elite politico publico.", "elite politicas publicas.", "elites politicas public.", "etica politica public.", "entre politica public."

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