Perhaps you should try some spelling variations:
"september 14 attacks" » "september 1 attacks", "september 18 attacks", "september 1.4 attacks", "september 11 attacks", "september 4 attacks"
"september 10 attacks" » "september 1 attacks", "september 18 attacks", "september 11 attacks", "september _ attacks", "september 2 attacks"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("september 14 attacks") OR ("september 10 attacks")).
• Removing quotes may allow a broader search: (( september 14 attacks ) or ( september 10 attacks )).
• Adding a wildcard symbol may retrieve word variants: (("september 14 attacks") or ("september 10 attacks"))*.