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