Perhaps you should try some spelling variations:
"sobre politicas publicass." » "sobre politicas publicas.", "sobre politica publicas.", "sobre politicas publicad.", "sobre politica publicass.", "serie politicas publicass."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."
"entre politica pablo." » "sobre politica pablo.", "entre politica para.", "entre colica pablo.", "entre politica al."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("sobre politicas publicass.") or ((("entre politica pablo.") or ("serie politica publica."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sobre politicas publicass.") OR ((("entre politica pablo.") OR ("serie politica publica.")))).
• Removing quotes may allow a broader search: (( sobre politicas publicass. ) or ((( entre politica pablo. ) or ( serie politica publica. )))).
• Adding a wildcard symbol may retrieve word variants: (("sobre politicas publicass.") or ((("entre politica pablo.") or ("serie politica publica."))))*.