Perhaps you should try some spelling variations:
"knowledge research in educational equality and diversity" » "knowledge research in educational quality and diversity", "knowledge research in educational inequality and diversity", "knowledge research in education quality and diversity", "knowledge resources in educational equality and diversity"
"knowledge research in educational equity and diversity" » "knowledge resources in educational equity and diversity", "knowledge research in education equity and diversity", "knowledge research in educational quality and diversity", "knowledge research in educational inequality and diversity"

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