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

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