Perhaps you should try some spelling variations:
boon chong » boon siong
joon chang » hoong chang, jin chang, woo chang
wang yang » wang yan, wang liang, wang yanling
eine pang » eine lange
jin ying » li ying
yang wie » yang jie, lang wien, yang di
wie eine » wie ein, wie die

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 (jin ying)) yang wie eine pang ((joon chang) OR (boon chong)) hari ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (jin ying)) yang wie eine pang ((joon chang) OR (boon chong)) hari ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (jin ying)) yang wie eine pang ((joon chang) OR (boon chong)) hari ;*.