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