Perhaps you should try some spelling variations:
"sobre politicas public." » "sobre politicas publicad.", "sobre politica publica.", "sobre politica publicas.", "sobre politica public."
"serie politicas publicas." » "serie politicas publicadas.", "serie politica publicaas.", "serie politica publicasas.", "serie policiaca publicas.", "serie politicas publica.", "serie politicas publico."
"elite politica pabload." » "elite politica pablo.", "elite politica paolo.", "elite politicas pablo.", "elites politicas pabload.", "etica politica pabload.", "entre politica pabload."

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 ("elite politica pabload."))) OR ("serie politicas publicas."))~.
• Removing quotes may allow a broader search: (((( sobre politicas public. ) or ( elite politica pabload. ))) or ( serie politicas publicas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politicas public.") or ("elite politica pabload."))) or ("serie politicas publicas."))*.