Perhaps you should try some spelling variations:
"serie policiaca publicas." » "serie politica publicas.", "serie politicas publicas.", "serie politica publica."
"crisis politicas public." » "crisis politica public.", "elites politicas public.", "crisis politicas publicas.", "crisis politicas publicad.", "crisis politica publica."
"serie politica publico." » "serie politica publica.", "serie politico publico.", "serie politica publicas.", "serie politicas publico.", "sobre politica publico.", "elite politica publico."

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