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.", "serie politicas publicad."
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicaciones."
"sobre politicas public." » "sobre politicas publicas.", "sobre politica publica.", "sobre politicas pablo.", "serie politicas public."

You may be able to get more results by adjusting your search query.

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