Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas."
"limites politicos public." » "lideres politicos public.", "debates politicos public.", "limites juridicos public.", "limites politico publico.", "limites politicos republica.", "limites politicas publicas."
"elites politicas public." » "las politicas public.", "ideas politicas public.", "relaciones politicas public.", "elites politicas publicas.", "elites politicas publicad.", "elites politica publica."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("serie policiaca publica.") or ((("elites politicas public.") OR ("limites politicos public."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie policiaca publica.") OR ((("elites politicas public.") OR ("limites politicos public.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie policiaca publica.\") or (((\"elites politicas public.\") OR (\"limites politicos public.\"))))".
• Removing quotes may allow a broader search: (( serie policiaca publica. ) or ((( elites politicas public. ) OR ( limites politicos public. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie policiaca publica.") or ((("elites politicas public.") OR ("limites politicos public."))))*.