Perhaps you should try some spelling variations:
"interdisciplinary pedagogical mathematics" » "interdisciplinary pedagogy mathematics", "interdisciplinary medical mathematics", "disciplinary pedagogical mathematics", "interdisciplinary pedagogies mathematics", "interdisciplinary ecological mathematics"
"interdisciplinary dialogues mathematics" » "interdisciplinary dialogue mathematics", "interdisciplinary discourse mathematics", "interdisciplinary issues mathematics", "interdisciplinary values mathematics", "interdisciplinary pedagogies mathematics"
"interdisciplinary analysis mathematical" » "interdisciplinary analysis mathematics", "interdisciplinary analyse mathematique"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("interdisciplinary analysis mathematical") OR ((("interdisciplinary dialogues mathematics") OR ("interdisciplinary pedagogical mathematics")))).
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