Perhaps you should try some spelling variations:
wang liang » wang yang
liang wang » liang dan, liang tan, liang ying
yuan cheng » yuan chang, huang cheng, yu cheng
wang yuan » wang yuhan, wang yan, fang yuan
guan kong » tan kong, yuan kang
zhang zhi » zhong zhi, wang zhi, zhang wei
nan kong » tan kong
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 liang wang yuan cheng ((guan kong) OR (nan kong)) ((hang zhi) OR (zhang zhi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang wang yuan cheng ((guan kong) OR (nan kong)) ((hang zhi) or (zhang zhi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang wang yuan cheng ((guan kong) OR (nan kong)) ((hang zhi) or (zhang zhi)) ;*.