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

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