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