Perhaps you should try some spelling variations:
"limites politicos las." » "lideres politicos las.", "debates politicos las.", "limites juridicos las.", "limites politicos la.", "limites politico la.", "limites politica las."
"serie politicas publicas." » "serie policiaca publicas.", "serie politicas publica.", "serie politicas public.", "serie politicas publico."
"las politicas luis." » "las politica luis.", "las politico luis.", "las politicas las."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("las politicas luis.") or ("limites politicos las."))) or ("serie politicas publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("las politicas luis.") OR ("limites politicos las."))) OR ("serie politicas publicas."))*.
• Removing quotes may allow a broader search: (((( las politicas luis. ) or ( limites politicos las. ))) or ( serie politicas publicas. ))*.