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

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 politica publicas.") or ((("elite politica para.") or ("serie policiaca publica."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sobre politica publicas.") OR ((("elite politica para.") OR ("serie policiaca publica.")))).
• Removing quotes may allow a broader search: (( sobre politica publicas. ) or ((( elite politica para. ) or ( serie policiaca publica. )))).
• Adding a wildcard symbol may retrieve word variants: (("sobre politica publicas.") or ((("elite politica para.") or ("serie policiaca publica."))))*.