Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"philosophy in mathematica" » "philosophy in mathematical", "philosophy in mathematics", "philosophy con mathematica", "philosophy and mathematica", "philosophy a mathematica"
"philosophy y matematicas" » "philosophy de matematicas", "philosophy en matematicas", "philosophy las matematicas", "philosophy a matematicas", "philosophy and matematicas", "philosophy e matematicas", "philosophy y matematicos", "philosophy la matematicas"
"philosophy y matematica" » "philosophy a matematica", "philosophy and matematica", "philosophy e matematica", "philosophy y matematico", "philosophy la matematica"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("philosophy in mathematica") OR ((("philosophy y matematica") OR ("philosophy y matematicas"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"philosophy in mathematica\") OR (((\"philosophy y matematica\") OR (\"philosophy y matematicas\"))))".
• Removing quotes may allow a broader search: (( philosophy in mathematica ) OR ((( philosophy y matematica ) OR ( philosophy y matematicas )))).
• Adding a wildcard symbol may retrieve word variants: (("philosophy in mathematica") OR ((("philosophy y matematica") OR ("philosophy y matematicas"))))*.