Perhaps you should try some spelling variations:
yihan guan » yan guan
oven kind » oven king
kind john » king john, hinde john, und john
yan yuan » yan guan, fang yuan, nan yan
hua oven » hua chen, hua ren, ua over
wong sam » wong sau, wong lai, wong max
von sam » von sa, von sap, von scham

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 ((yihan guan) OR (yan yuan)) hua oven kind john ((kong sar) OR (((wong sam) OR (von sam)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yihan guan) or (yan yuan)) hua oven kind john ((kong sar) or (((wong sam) OR (von sam)))) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yihan guan) or (yan yuan)) hua oven kind john ((kong sar) or (((wong sam) OR (von sam)))) ;*.