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