Perhaps you should try some spelling variations:
"abdallah khan" » "abdallah chadi", "abdallah ghazy", "abdallah her"
"abdallah born" » "abdallah lord", "abdallah son", "abdalla son"
"abdallah a" » "abdallah _", "abdullah a", "abdullah al"

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: (((("abdallah khan") OR ("abdallah born"))) OR ("abdallah a")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"abdallah khan\") OR (\"abdallah born\"))) or (\"abdallah a\"))".
• Removing quotes may allow a broader search: (((( abdallah khan ) OR ( abdallah born ))) or ( abdallah a )).
• Adding a wildcard symbol may retrieve word variants: (((("abdallah khan") OR ("abdallah born"))) or ("abdallah a"))*.