Perhaps you should try some spelling variations:
zhang yan » zhang fan, zhang jian, wang yan
john dong » john song, john wong, john bonn
yan yang » yang yang, yao yang, dan yang
yang yi » yang di, yang xi, yang jui
lu ying » li ying, lu ding, lu xing
ku ying » ka ying, ku ring, hui ying
sin » sign, sind, skin

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

• Performing a fuzzy search may retrieve terms with similar spellings: zhang yan yang yi ((lu ying) OR (ku ying)) john dong sin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhang yan yang yi ((lu ying) OR (ku ying)) john dong sin ;*".