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