Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publicaciones.", "sobre politicas publicass."
"serie policiaca publico." » "serie politico publico.", "serie oficial publico."
"series politica publica." » "series politicas publicas.", "series political publica.", "series politicas publica.", "serie politica publica."

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