Perhaps you should try some spelling variations:
"materialises citizens" » "materialize citizens", "materialized citizens", "materials citizens", "materializes citizens", "materializeds citizens", "materialss citizens"
"materialises cities" » "materialize cities", "materialized cities", "materials cities", "materializes cities", "materializeds cities", "materialss cities"
"materialise cities" » "materialize cities", "materialized cities", "materials cities"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("materialises citizens") or ((("materialises cities") or ("materialise cities"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("materialises citizens") OR ((("materialises cities") OR ("materialise cities")))).
• Removing quotes may allow a broader search: (( materialises citizens ) or ((( materialises cities ) or ( materialise cities )))).
• Adding a wildcard symbol may retrieve word variants: (("materialises citizens") or ((("materialises cities") or ("materialise cities"))))*.