Perhaps you should try some spelling variations:
cheng ying » cheng bing, cheng ling, chen yang
cheng ming » cheng bing, cheng ling, chen ping
yang wann » yang yang, yang fan, yan wang
wei yang » pei yang, wei wang, wei yang's
kong eiu » tonga eiu
wann yu » wang yue
dong di » dong sin

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wei yang wann yu ((cheng ying) OR (cheng ming)) jin ((cong shu) OR (((kong eiu) OR (dong di)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wei yang wann yu ((cheng ying) OR (cheng ming)) jin ((cong shu) or (((kong eiu) or (dong di)))) ;~".
• Adding a wildcard symbol may retrieve word variants: wei yang wann yu ((cheng ying) OR (cheng ming)) jin ((cong shu) or (((kong eiu) or (dong di)))) ;*.