Perhaps you should try some spelling variations:
wang tuan » wang yuhan, wang hua, anh tuan
wang xuan » wang xiuyan, wang xueman, wang yuhan
yang john » young john, king john, yang jin
dan yang » daun yang, tan yang, wang yang
hua dan » hua ban
von sam » von sa, von sap, von scham
sar » sara, star, saur

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 ((((wang tuan) OR (wang yan))) OR (wang xuan)) hua dan yang john ((von sam) OR (kong sar)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((wang tuan) OR (wang yan))) or (wang xuan)) hua dan yang john ((von sam) or (kong sar)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((((wang tuan) OR (wang yan))) or (wang xuan)) hua dan yang john ((von sam) or (kong sar)) ;*.