Perhaps you should try some spelling variations:
"sobre politicas publica." » "sobre politicas publicad.", "sobre politica publica.", "sobre politicos republica."
"serie politicas publicas." » "serie politicas publicads.", "serie politica publicas.", "serie politicos republicas.", "serie policiaca publicas."
"elite politica publicas." » "elite politica publica.", "elite politica publicaciones.", "elites politicas publicas.", "etica politica publicas.", "entre politica publicas."

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