Perhaps you should try some spelling variations:
yong chang » ying chang, yong phang, young change
wang yong » wang yang, wang hyoung, wang yan
kang chen » chang chen, jane chen, tang chun
kang hay » eang hay, dang hai, kang tae
kang han » kong hang, zhang han, dang hai
chang 1 » chang _, chang c, anhang 1
1 den » _ den, 1 der, 1 des

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: wang yong chang 1 den ((yang judy) OR (yang di)) ((((kang hay) OR (kang han))) OR (kang chen)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong chang 1 den ((yang judy) or (yang di)) ((((kang hay) OR (kang han))) or (kang chen)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong chang 1 den ((yang judy) or (yang di)) ((((kang hay) OR (kang han))) or (kang chen)) ;*.