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• Performing a fuzzy search may retrieve terms with similar spellings: (("Psychology in medieval Islam") OR ("Psychology in medical Islam"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Psychology in medieval Islam\") OR (\"Psychology in medical Islam\"))".
• Removing quotes may allow a broader search: (( Psychology in medieval Islam ) OR ( Psychology in medical Islam )).
• Adding a wildcard symbol may retrieve word variants: (("Psychology in medieval Islam") OR ("Psychology in medical Islam"))*.