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

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