Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publicaciones.", "sobre politicas publicass."
"series politicas publico." » "series politicas publicas.", "series politicas publicad.", "series politico publico.", "serie politicas publico.", "series political publico.", "especies politicas publico."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "elite politica publica."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("serie politica publica.") or ("sobre politica publicas."))) or ("series politicas publico."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politica publica.") OR ("sobre politica publicas."))) OR ("series politicas publico.")).
• Removing quotes may allow a broader search: (((( serie politica publica. ) or ( sobre politica publicas. ))) or ( series politicas publico. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politica publica.") or ("sobre politica publicas."))) or ("series politicas publico."))*.