Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
ren gang » den gang, deng gang, der gang
hong hai » shang hai, zhong tai, dang hai
gang li » gan li, tang li, wang li
hong yu » wong yue
di ren » si ren

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yang di ren gang li ((hong hai) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yang di ren gang li ((hong hai) OR (hong yu)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yong yang di ren gang li ((hong hai) or (hong yu)) ;*.