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

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