Perhaps you should try some spelling variations:
"sobre politicas publica." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publica."
"serie politicas publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca publica."
"etica politica publicaa." » "etica politica publica.", "etica politica publicas.", "etica politicas publicas.", "publica politica publicaa."

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