Perhaps you should try some spelling variations:
"serie policiaca publicas." » "serie politica publicas.", "serie politicas publicas.", "serie politica publica."
"sobre politicas public." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publica.", "sobre politica public.", "serie politicas public."
"serie politica pablo." » "serie politicas pablo.", "sobre politica pablo.", "elite politica pablo.", "serie politica para.", "serie colica pablo.", "serie politica al."

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