Perhaps you should try some spelling variations:
xiaoyang hang » xiaoyang tang, xiaotong zhang, xiaodong huang
den xiaoyang » deng xiaoping, shen xiaofang, tang xiaoyang
hang china » han china, change china, ghana china
pei yang » wei yang, hui yang, yi yang
jin data » main data, own data, von data
pei yun » lei kyun, mei yung, wei yuan

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: den xiaoyang hang china ((pei yang) OR (pei yun)) jin data (hai OR hari) ;~.
• Adding a wildcard symbol may retrieve word variants: den xiaoyang hang china ((pei yang) or (pei yun)) jin data (hai or hari) ;*.