Perhaps you should try some spelling variations:
zhang yan » zhang fan, zhang jian, wang yan
yang huan » yang guang, wang hua, yang dean
tong shui » tong hui, cong shu
wang dan » wang yan, wang ban, wang yidan
dan yang » daun yang, tan yang, wang yang
huan jie » ruan ji
pang yan » wang yan, wang yang, yang yang
gong hui » tong hui, wang hui, gong si

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang dan yang huan jie ((pang yan) or (zhang yan)) ((tong shui) OR (gong hui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang dan yang huan jie ((pang yan) OR (zhang yan)) ((tong shui) OR (gong hui)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dan yang huan jie ((pang yan) or (zhang yan)) ((tong shui) OR (gong hui)) ;".
• Adding a wildcard symbol may retrieve word variants: wang dan yang huan jie ((pang yan) or (zhang yan)) ((tong shui) OR (gong hui)) ;*.