Perhaps you should try some spelling variations:
wang xiaobing » wang xiaoping, wang xiaodong, wang xiaolin
xiaobing tan » xiaoyang tang, xiaojing a
minh dang » minh cong
mich dann » ich dann
tan chia » tuan china, than china, can china
chia dan » chia lan, chia wen, shi dan
dan sang » dan yang, dan dana, dan qing
mich das » sich das, ich das, sich dass

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: wang xiaobing tan chia dan sang ((minh dang) OR (((mich dann) OR (mich das)))) (hai OR haji) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiaobing tan chia dan sang ((minh dang) or (((mich dann) OR (mich das)))) (hai or haji) ;~".
• Adding a wildcard symbol may retrieve word variants: wang xiaobing tan chia dan sang ((minh dang) or (((mich dann) OR (mich das)))) (hai or haji) ;*.