Perhaps you should try some spelling variations:
"serie policiaca publicas." » "serie politica publicas.", "serie politicas publicas.", "serie politica publica."
"serie politico publico." » "serie politica publica.", "serie politica publicas.", "serie politico republicano.", "serie politica publico.", "serie politicas publico.", "series political publico."
"sobre politica public." » "sobre politica publica.", "sobre politica publicas.", "sobre politicas publicas.", "sobre 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 public.") or ((("serie politico publico.") or ("serie policiaca publicas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sobre politica public.") OR ((("serie politico publico.") OR ("serie policiaca publicas."))))*.
• Removing quotes may allow a broader search: (( sobre politica public. ) or ((( serie politico publico. ) or ( serie policiaca publicas. ))))*.