Perhaps you should try some spelling variations:
"sobre politicas publicad." » "sobre politicas publicas.", "sobre politica publicas.", "sobre politicos republica.", "sobre politica publicad."
"serie politicas pabloas." » "serie politicas pablo.", "serie politicas publicas.", "serie politica pablo.", "serie policiaca pabloas."
"elite politica publica." » "elite politicas publicas.", "elites politicas publica.", "etica politica publica.", "entre 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: (((("sobre politicas publicad.") OR ("elite politica publica."))) OR ("serie politicas pabloas."))~.
• Removing quotes may allow a broader search: (((( sobre politicas publicad. ) or ( elite politica publica. ))) or ( serie politicas pabloas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politicas publicad.") or ("elite politica publica."))) or ("serie politicas pabloas."))*.