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

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

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