Perhaps you should try some spelling variations:
"serie politicas publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie politicas publicasa.", "serie politicas publicada.", "serie politica publicaa.", "serie policiaca publica."
"sobre politica publico." » "sobre politica publica.", "sobre politico publico.", "sobre politica publicas.", "sobre politicas publico."
"ideas politicas public." » "ideas politicas publicas.", "ideas politicas publicad.", "ideas politica publica.", "las politicas public.", "ideologias politicas public."

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