Perhaps you should try some spelling variations:
"interdisciplinary case mathematics" » "interdisciplinary care mathematics", "interdisciplinary _ mathematics", "interdisciplinary science mathematics", "interdisciplinary based mathematics", "interdisciplinary chose mathematics", "interdisciplinary phase mathematics"
"interdisciplinary area mathematics" » "interdisciplinary care mathematics", "interdisciplinary _ mathematics", "interdisciplinary approach mathematics", "interdisciplinary area mathematical", "interdisciplinary treat mathematics", "interdisciplinary real mathematics"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"interdisciplinary case mathematics\") OR (\"interdisciplinary area mathematics\"))*".
• Removing quotes may allow a broader search: (( interdisciplinary case mathematics ) OR ( interdisciplinary area mathematics ))*.