Perhaps you should try some spelling variations:
"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."
"ser criticos republica." » "sus criticos republica.", "de criticos republica.", "der criticism republica."

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 publicas."))) OR ("ser criticos republica."))~.
• Removing quotes may allow a broader search: (((( serie politica publica. ) or ( sobre politica publicas. ))) or ( ser criticos republica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("serie politica publica.") or ("sobre politica publicas."))) or ("ser criticos republica."))*.