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