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