Perhaps you should try some spelling variations:
"sobre politicas publicad." » "sobre politicas publicas.", "sobre politica publica.", "sobre politicos republica.", "sobre politicas publicasd.", "sobre politica publicad.", "sobre politicos republicad.", "serie politicas publicad."
"sobre politicas publica." » "sobre politicas publicas.", "sobre politica publica.", "sobre politicos republica.", "serie politicas publica."
"serie politica publicas." » "serie politicas publicas.", "serie politica publica.", "serie politica publicaciones.", "serie policiaca publicas.", "sobre politica publicas."

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