Perhaps you should try some spelling variations:
"sobre politica publicass." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica republicana.", "sobre politicas publicass.", "sobre politica publicacioness.", "sobre politicas publicasss."
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publicaciones.", "sobre politicas publicass."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "elite politica 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 politica publica.") OR ((("sobre politica publicass.") OR ("sobre politica publicas."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie politica publica.\") or (((\"sobre politica publicass.\") OR (\"sobre politica publicas.\"))))~".
• Removing quotes may allow a broader search: (( serie politica publica. ) or ((( sobre politica publicass. ) OR ( sobre politica publicas. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("serie politica publica.") or ((("sobre politica publicass.") OR ("sobre politica publicas."))))*.