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