Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
zhang ying » zhang ming, zhang jing, zhang ting
zhang ping » zhang ming, zhang jing, zhang ting
yuan wang » yan wang, yuan kang, yuan chang
yan jian » yan liang, yang jin, gan jiao
jian she » can she, jia shen, jiao shi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan wang) or (yuan cheng)) yan jian she ((zhang ying) OR (zhang ping)) hong seo ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan wang) OR (yuan cheng)) yan jian she ((zhang ying) OR (zhang ping)) hong seo ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan wang) or (yuan cheng)) yan jian she ((zhang ying) OR (zhang ping)) hong seo ;".
• Adding a wildcard symbol may retrieve word variants: ((yuan wang) or (yuan cheng)) yan jian she ((zhang ying) OR (zhang ping)) hong seo ;*.