Perhaps you should try some spelling variations:
"serie policiaca publicas." » "serie politica publicas.", "serie politicas publicas.", "serie politicas publicad."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas 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 policiaca publicas.") OR ("sobre politica publica."))) OR ("ser criticos republica."))~.
• Removing quotes may allow a broader search: (((( serie policiaca publicas. ) or ( sobre politica publica. ))) or ( ser criticos republica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("serie policiaca publicas.") or ("sobre politica publica."))) or ("ser criticos republica."))*.