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

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 public."))) OR ("serie policiaca publica."))~.
• Removing quotes may allow a broader search: (((( teoria politica public. ) or ( sobre politicas public. ))) or ( serie policiaca publica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("teoria politica public.") or ("sobre politicas public."))) or ("serie policiaca publica."))*.