Perhaps you should try some spelling variations:
"architects and patron / egypt" » "architecture and patron / egypt"
"architectures and patrons / egypt" » "architecture and patrons / egypt"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("architects and patron / egypt") OR ("architectures and patrons / egypt")).
• Removing quotes may allow a broader search: (( architects and patron / egypt ) or ( architectures and patrons / egypt )).
• Adding a wildcard symbol may retrieve word variants: (("architects and patron / egypt") or ("architectures and patrons / egypt"))*.