Perhaps you should try some spelling variations:
wang yiqian » wang yidan
yiqian wang » yijiang wang, liqin wang, qian wang
yuan cheng » huang cheng, yu cheng, tan cheng
yuan chang » huang chang, han chang, xuan thang
guan kong » tan kong, nan kong, yuan kang
hang zhi » zhang zhi, liang zhi, zhong zhi

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 ((yuan cheng) OR (yuan chang)) guan kong ((hang zhi) OR (wang zhi)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yiqian wang ((yuan cheng) or (yuan chang)) guan kong ((hang zhi) or (wang zhi)) ;*.