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