Perhaps you should try some spelling variations:
yiqian wang » yijiang wang, liqin wang
yuhan cheng » yuan cheng, yunnan sheng
cheng guan » cheng han, thong guan
qian wang » qian rong, qian yan, yan wang
guan kong » tan kong, nan kong, yuan kang
zhang wei » zhen wei
hang zhi » zhang zhi, wang zhi, liang 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 ((qian wang) OR (yiqian wang)) yuhan cheng guan kong ((hang zhi) OR (zhang wei)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((qian wang) OR (yiqian wang)) yuhan cheng guan kong ((hang zhi) or (zhang wei)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((qian wang) OR (yiqian wang)) yuhan cheng guan kong ((hang zhi) or (zhang wei)) ;*.