Perhaps you should try some spelling variations:
"david marshall nathan khan" » "david marshall bethan khan", "david marshall norman khan", "david marshall alan khan", "david marshall nathan kulan", "david marshall nathan alan", "david marshall jonathan khai"
"air marshal nather khan" » "air marshal mathews khan", "laird marshall nather khan", "a.g marshall nather khan"
"air marshal nasehir khan" » "air marshal nasir khan", "air marshal saghir khan", "air marshal nazir khan", "laird marshall nasehir khan", "a.g marshall nasehir khan"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("air marshal nasehir khan") or ("air marshal nather khan"))) or ("david marshall nathan khan"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("air marshal nasehir khan") OR ("air marshal nather khan"))) OR ("david marshall nathan khan")).
• Removing quotes may allow a broader search: (((( air marshal nasehir khan ) or ( air marshal nather khan ))) or ( david marshall nathan khan )).
• Adding a wildcard symbol may retrieve word variants: (((("air marshal nasehir khan") or ("air marshal nather khan"))) or ("david marshall nathan khan"))*.