Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan wang » yiqian wang, qian wang, yan wang
ren zhang » zhen zhang, bin zhang, ceo zhang
zhang min » zhang ming, zhang xin, chang min
shang hai » shang kai, dang hai, chang ha
hong ghi » zhong zhi, hong g, hong hai
hua ren » hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan wang hua ren zhang min ((hong ghi) or (shang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan wang hua ren zhang min ((hong ghi) OR (shang hai)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan wang hua ren zhang min ((hong ghi) or (shang hai)) ;*.