Perhaps you should try some spelling variations:
"non-overlapping magisteria" » "non-overlapping registers", "non-overlapping matrix"
"non-nonoverlapping magisteria" » "non-nonoverlapping registers", "non-nonoverlapping matrix"

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: "((\"non-overlapping magisteria\") OR (\"non-nonoverlapping magisteria\"))".
• Removing quotes may allow a broader search: (( non-overlapping magisteria ) OR ( non-nonoverlapping magisteria )).
• Adding a wildcard symbol may retrieve word variants: (("non-overlapping magisteria") OR ("non-nonoverlapping magisteria"))*.