Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicad."
"sobre politicas public." » "sobre politicas publicad.", "sobre politica publica.", "sobre politica publicas.", "sobre politica public."
"serie politicas publicas." » "serie politicas publicadas.", "serie politica publicaas.", "serie politica publicasas.", "serie politicas publico."

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 public.") or ((("serie policiaca publica.") or ("serie politicas publicas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sobre politicas public.") OR ((("serie policiaca publica.") OR ("serie politicas publicas."))))*.
• Removing quotes may allow a broader search: (( sobre politicas public. ) or ((( serie policiaca publica. ) or ( serie politicas publicas. ))))*.