Perhaps you should try some spelling variations:
"bibliotecas perez eduardo a pensamiento critico;" » "bibliotecas para eduardo a pensamiento critico;", "biblioteca aurea eduardo a pensamiento critico;", "bibliotecas de eduardo a pensamiento critico;", "bibliotecas perez bernardo a pensamiento critico;", "bibliotecas perez ricardo a pensamiento critico;", "bibliotecas gomez eduardo a pensamiento critico;", "bibliotecas perez eduardo al pensamiento critico;", "bibliotecas perez eduardo y pensamiento critico;", "bibliotecas perez eduardo 6 pensamiento critico;"
"biblioteca saavedra fajardo de pensamiento critico;" » "biblioteca saavedra fajardo del pensamiento critico;", "biblioteca saavedra fajardo el pensamiento critico;", "biblioteca saavedra fajardo y 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: (("biblioteca saavedra fajardo de pensamiento critico;") or ("bibliotecas perez eduardo a pensamiento critico;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("biblioteca saavedra fajardo de pensamiento critico;") OR ("bibliotecas perez eduardo a pensamiento critico;")).
• Removing quotes may allow a broader search: (( biblioteca saavedra fajardo de pensamiento critico; ) or ( bibliotecas perez eduardo a pensamiento critico; )).
• Adding a wildcard symbol may retrieve word variants: (("biblioteca saavedra fajardo de pensamiento critico;") or ("bibliotecas perez eduardo a pensamiento critico;"))*.