Perhaps you should try some spelling variations:
"serie politica publicas." » "serie politicas publicas.", "serie politica publicaciones.", "serie politicas publicass.", "sobre politica publicas.", "elite politica publicas."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "sobre politica publica.", "elite politica publica."
"serie policiaca paz." » "serie policiaca a.", "serie politicas paz.", "serie policiaca de."

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