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.", "sobre politica publicad.", "serie politicas publicad."
"serie politica publicas." » "serie politicas publicas.", "serie politica publica.", "serie politica publicaciones.", "serie policiaca publicas.", "sobre politica publicas."
"sobre politicas public." » "sobre politicas publicas.", "sobre politica publica.", "sobre politicas pablo.", "sobre politica public.", "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 ("serie politica publicas."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sobre politicas public.\") OR (\"sobre politicas publicad.\"))) or (\"serie politica publicas.\"))~".
• Removing quotes may allow a broader search: (((( sobre politicas public. ) OR ( sobre politicas publicad. ))) or ( serie politica publicas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politicas public.") OR ("sobre politicas publicad."))) or ("serie politica publicas."))*.