Perhaps you should try some spelling variations:
tuman john » dugan john, tian john, turn john
john chae » john mchale, john cage, john michael
dang hadi » dang hai
yang jin » yang jie, yang jun, ying jin
chae yu » chae yun, che yu, chieh yu
yu chen » yu cheng, yi chen, yulu chen
yang xi » yang jui
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: tuman john chae yu chen ((((yang xi) OR (yang jin))) OR (((yang di) OR (yang yi)))) dang hadi ;~.
• Adding a wildcard symbol may retrieve word variants: tuman john chae yu chen ((((yang xi) or (yang jin))) or (((yang di) or (yang yi)))) dang hadi ;*.