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

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: (("serie politicas publico.") or ((("sobre politicas publica.") OR ("sobre politicas publicad."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie politicas publico.") OR ((("sobre politicas publica.") OR ("sobre politicas publicad.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie politicas publico.\") or (((\"sobre politicas publica.\") OR (\"sobre politicas publicad.\"))))".
• Removing quotes may allow a broader search: (( serie politicas publico. ) or ((( sobre politicas publica. ) OR ( sobre politicas publicad. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie politicas publico.") or ((("sobre politicas publica.") OR ("sobre politicas publicad."))))*.