Perhaps you should try some spelling variations:
wang yiqian » wang yidan
yiqian wang » yijiang wang, liqin wang, qian wang
sher zhang » zhen zhang, shen chang
zhang minh » zhang ming, zhang xin, chang min
minh hong » minh cong, min hong, linh hoang
yan sher » khan sher, can she, han shen

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 yiqian wang yan sher zhang minh hong (tan OR than) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yiqian wang yan sher zhang minh hong (tan or than) ;*.