Perhaps you should try some spelling variations:
xiaoyang tang » xiaoyan deng
den xiaoyang » deng xiaoping, shen xiaofang, tang xiaoyang
tang chia » tan chia, hang china, tang chun
pei yang » wei yang, hui yang, yi yang
von data » loan data, von daten, von daf
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 tang chia ((pei yang) OR (pei yun)) von data (hai OR hari) ;~.
• Adding a wildcard symbol may retrieve word variants: den xiaoyang tang chia ((pei yang) or (pei yun)) von data (hai or hari) ;*.