Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
china bonn » china bond, china boom, china box
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
john song » john wong, john bonn, john ngosong
bonn ein » bonn mein, bonn die, kann ein
ein john » ein lohn, heins john, levin john
dong » doing, long, done
shin » skin, sein, thin

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: ((dong sin) OR (((yang yang) OR (wang yang)))) tuan china bonn ein john song shin ;~.
• Adding a wildcard symbol may retrieve word variants: ((dong sin) or (((yang yang) or (wang yang)))) tuan china bonn ein john song shin ;*.