Perhaps you should try some spelling variations:
xiaodong 2 » xiaodong yu
yang yang » wang yang, wang yan
data hari » data sharing
dan yang » daun yang, tan yang, wang yang
tao yang » yao yang, tan yang, xiao yang
und data » fund data, wind data, und daten
2 china » 4 china
wang » wing, wan, lang

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 xiaodong 2 china ((((dan yang) OR (yang yang))) OR (tao yang)) und data hari ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaodong 2 china ((((dan yang) or (yang yang))) or (tao yang)) und data hari ;*.