Perhaps you should try some spelling variations:
wang yang » wang yan, wang yanling
jia zhang » jie zhang, jia zhangke, xiao zhang
zhang kim » zhang xin, kang kim, zhang i
tan chia » tuan china, than china, can china
kim song » kim young, kim eung
song von » doing von, song jin, song min
tan hua » tuan hua, wang hua, tan puay

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 yang) OR (wang liang)) ((tan hua) OR (tan chia)) jia zhang kim song von ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (wang liang)) ((tan hua) OR (tan chia)) jia zhang kim song von ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (wang liang)) ((tan hua) OR (tan chia)) jia zhang kim song von ;*.