Perhaps you should try some spelling variations:
yang john » young john, king john, yang jin
yang yao » yang yang, wang yan, yang yi
ren yang » ren yan, chen yang, dan yang
bonn sam » bonn zum, bonn a, bonn das
hua ren » hua chen
bonn am » bonn a, bonn zum, bonn ana
yan ya » nan ya, yan yuan
wang » wing, wan, lang

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 ((yan ya) OR (yang yao)) hua ren yang john ((bonn sam) OR (bonn am)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan ya) or (yang yao)) hua ren yang john ((bonn sam) OR (bonn am)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan ya) or (yang yao)) hua ren yang john ((bonn sam) OR (bonn am)) ;*.