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

You may be able to get more results by adjusting your search query.

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