Perhaps you should try some spelling variations:
"sobre politicas publicad." » "sobre politicas publicas.", "sobre politica publica.", "sobre politicos republica.", "sobre politica publicad.", "serie politicas publicad."
"entre politica publicas." » "entre politicas publicas.", "entre politica publica.", "entre politica publicaciones.", "sobre politica publicas."
"serie politico publico." » "serie politica publica.", "serie politico republicano.", "serie politicos republica.", "serie politica publico.", "serie politicas publico.", "series political 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: (((("entre politica publicas.") or ("serie politico publico."))) or ("sobre politicas publicad."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("entre politica publicas.") OR ("serie politico publico."))) OR ("sobre politicas publicad.")).
• Removing quotes may allow a broader search: (((( entre politica publicas. ) or ( serie politico publico. ))) or ( sobre politicas publicad. )).
• Adding a wildcard symbol may retrieve word variants: (((("entre politica publicas.") or ("serie politico publico."))) or ("sobre politicas publicad."))*.