Perhaps you should try some spelling variations:
"etica politica publicas." » "etica politicas publicas.", "etica politica publicaciones.", "etica politicas publicass.", "publica politica publicas."
"sobre politica publico." » "sobre politico publico.", "sobre politicas publicas.", "sobre politicas publicad.", "sobre politicas publico."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "elite politica publica."

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