Perhaps you should try some spelling variations:
"pensamiento critica/pensamiento politico ;" » "pensamiento critica/pensamiento critico ;", "pensamiento critico/pensamiento politico ;", "pensamiento crtico/pensamiento politico ;", "pensamientos criticos/pensamiento politico ;"
"pensamiento critica/pensamiento utopico ;" » "pensamiento critico/pensamiento utopico ;", "pensamiento crtico/pensamiento utopico ;", "pensamientos criticos/pensamiento utopico ;", "pensamiento critica/pensamiento critico ;"

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: (("pensamiento critica/pensamiento utopico ;") OR ("pensamiento critica/pensamiento politico ;"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"pensamiento critica/pensamiento utopico ;\") OR (\"pensamiento critica/pensamiento politico ;\"))".
• Removing quotes may allow a broader search: (( pensamiento critica/pensamiento utopico ; ) OR ( pensamiento critica/pensamiento politico ; )).
• Adding a wildcard symbol may retrieve word variants: (("pensamiento critica/pensamiento utopico ;") OR ("pensamiento critica/pensamiento politico ;"))*.