Perhaps you should try some spelling variations:
"sobre politicas publica." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publica.", "sobre politicas publicasa.", "sobre politicas publicada.", "sobre politica publicaa.", "serie politicas publica."
"serie politica publicas." » "serie politicas publicas.", "serie politica publica.", "serie politica publicaciones.", "serie policiaca publicas.", "sobre politica publicas."
"series politicas public." » "serie politicas public.", "series political public.", "especies politicas public.", "series politicas publicas.", "series politicas publicad.", "series politica publica."

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 ((("serie politica publicas.") or ("series politicas public."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sobre politicas publica.") OR ((("serie politica publicas.") OR ("series politicas public.")))).
• Removing quotes may allow a broader search: (( sobre politicas publica. ) or ((( serie politica publicas. ) or ( series politicas public. )))).
• Adding a wildcard symbol may retrieve word variants: (("sobre politicas publica.") or ((("serie politica publicas.") or ("series politicas public."))))*.