Perhaps you should try some spelling variations:
"interdisciplinary lectures mathematics" » "interdisciplinary lecture mathematics", "interdisciplinary care mathematics", "interdisciplinary researches mathematics", "interdisciplinary lecturers mathematics", "interdisciplinary lectures mathematical", "interdisciplinary gestures mathematics"
"interdisciplinary issues mathematics" » "interdisciplinary dialogues mathematics", "interdisciplinary discourse mathematics", "interdisciplinary insights mathematics", "interdisciplinary issues mathematical", "interdisciplinary values mathematics", "interdisciplinary images mathematics"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("interdisciplinary issues mathematics") OR ("interdisciplinary lectures mathematics"))*.
• Removing quotes may allow a broader search: (( interdisciplinary issues mathematics ) or ( interdisciplinary lectures mathematics ))*.