Perhaps you should try some spelling variations:
duncan colin » duncan scaling, duncan kalina, duncan foley
colin chang » chin chang, chain change
chang fwu » chang su, chang you
yang july » yang judy, yang jui, yang jun
dang hari » dang hai
fwu chen » yu chen, zhu chen
yang xi » yang yi, yang jui

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: duncan colin chang fwu chen ((yang xi) OR (((yang di) OR (yang july)))) dang hari ;~.
• Adding a wildcard symbol may retrieve word variants: duncan colin chang fwu chen ((yang xi) or (((yang di) or (yang july)))) dang hari ;*.