Perhaps you should try some spelling variations:
"las politicas publico." » "las politicas publicas.", "las politicas publicad.", "las politica publicas."
"serie politico publico." » "serie politica publicas.", "serie politico republicano.", "serie politicos republica.", "serie politica publico.", "serie politicas publico.", "series political publico."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."

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