Perhaps you should try some spelling variations:
"sobre politicas publicad." » "sobre politicas publicas.", "sobre politica publica.", "sobre politicos republica.", "sobre politicas publicasad.", "sobre politica publicaad.", "sobre politicas pabload.", "sobre politica publicad."
"serie politica publicas." » "serie politicas publicas.", "serie politica publica.", "serie politica publicaciones.", "serie policiaca publicas.", "sobre politica publicas.", "elite politica publicas."
"serie politicas public." » "serie politicas publicas.", "serie politica publica.", "serie politicas pablo.", "serie policiaca public.", "serie policiacas public.", "sobre politicas public.", "elite politicas 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: (((("sobre politicas publicad.") or ("serie politicas public."))) or ("serie politica publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politicas publicad.") OR ("serie politicas public."))) OR ("serie politica publicas.")).
• Removing quotes may allow a broader search: (((( sobre politicas publicad. ) or ( serie politicas public. ))) or ( serie politica publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("sobre politicas publicad.") or ("serie politicas public."))) or ("serie politica publicas."))*.