Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan wang » yiqian wang, qian wang, yan wang
zhang qian » zhang jian, zhang tian, zhang qilun
zhang qin » zhang xin, zhang jin, zhang lin
zhong zhi » zhang zhi, hong ghi, zhong tai
hua chen » jui chen, yu chen, a chen
yi chen » jui chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan wang ((hua chen) or (yi chen)) ((zhang qian) OR (zhang qin)) zhong zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan wang ((hua chen) OR (yi chen)) ((zhang qian) OR (zhang qin)) zhong zhi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan wang ((hua chen) or (yi chen)) ((zhang qian) OR (zhang qin)) zhong zhi ;*".