Perhaps you should try some spelling variations:
"serie clinica publicaciones." » "serie clasica publicaciones.", "serie quimica publicaciones.", "serie botanica publicaciones.", "muerte clinica publicaciones.", "serie cronicas publicaciones."
"serie politica publica." » "serie politicas publicas.", "serie politica publicasa.", "serie politico publicoa.", "serie politicas publicasa.", "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."
"serie politica public." » "serie politica publicas.", "serie politico publico.", "serie politicas publicas.", "serie politicas public.", "serie policiaca public.", "sobre politica public."

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 politica public.") OR ("serie politica publica."))) or ("serie clinica publicaciones."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politica public.") OR ("serie politica publica."))) OR ("serie clinica publicaciones.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"serie politica public.\") OR (\"serie politica publica.\"))) or (\"serie clinica publicaciones.\"))".
• Removing quotes may allow a broader search: (((( serie politica public. ) OR ( serie politica publica. ))) or ( serie clinica publicaciones. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politica public.") OR ("serie politica publica."))) or ("serie clinica publicaciones."))*.