Perhaps you should try some spelling variations:
"serie politicas publicas." » "serie politicas publicads.", "serie politica publicas.", "serie politica publicass.", "serie policiaca publicas."
"serie politicas publica." » "serie politicas publicad.", "serie politica publica.", "serie politica publicas.", "serie policiaca publica."
"limites politicos julia." » "lideres politicos julia.", "debates politicos julia.", "limites juridicos julia.", "limites politico julia.", "limites politicos una.", "limites politicos la."

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