Perhaps you should try some spelling variations:
wang yiqian » wang yidan
yiqian kang » yiqian wang, millian kang
yuan cheng » yuan chang, huang cheng, yu cheng
zhang sing » zhang ming, zhang jing, zhang ping
tan cheng » tang zheng, tan hong, tan eng
zhang xin » zhang jian, zhang ming, zhang fan
kong ghi » hong ghi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yiqian kang ((tan cheng) OR (yuan cheng)) ((zhang sing) or (zhang xin)) kong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yiqian kang ((tan cheng) OR (yuan cheng)) ((zhang sing) OR (zhang xin)) kong ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yiqian kang ((tan cheng) OR (yuan cheng)) ((zhang sing) or (zhang xin)) kong ghi ;".
• Adding a wildcard symbol may retrieve word variants: wang yiqian kang ((tan cheng) OR (yuan cheng)) ((zhang sing) or (zhang xin)) kong ghi ;*.