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