Perhaps you should try some spelling variations:
"serie politicas publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca publica."
"limites politicos los." » "lideres politicos los.", "debates politicos los.", "limites juridicos los.", "limites politicos las.", "limites politico los.", "limites politicos jose."
"elites politica luis." » "elites politicas luis.", "elite politica luis.", "elite politico luis.", "elites politico luis.", "elites politica las.", "elites politica los."

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

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