Perhaps you should try some spelling variations:
chen yong » chen rong, chen yang, zhen yong
yang 47i » yang di, yang jui, yang xi
yong did » long did, dong di, yong kim
did wong » dr wong, kie wong
wong yue » wang yue, hong yu
yang 47 » yang 4, yang 4.3
yi chen » jui chen
yang y » yang yi, yang _, yang 8
ang y » ang _

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: ((yang 47) OR (yang 47i))((ang y) OR (yang y)) yi chen yong did wong yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang 47) or (yang 47i))((ang y) OR (yang y)) yi chen yong did wong yue ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang 47) or (yang 47i))((ang y) OR (yang y)) yi chen yong did wong yue ;*.