Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicad."
"teoria politica public." » "teoria critica public.", "historia politica public.", "ciencia politica public.", "teoria politica publica.", "teoria politica publicas.", "teoria politico publico."
"sobre politicas publicas." » "sobre politica publicas.", "serie politicas publicas."

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

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