Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
john wong » john song, john bonn
wie rene » wilke rene, wie deine
wie eine » wie ein, wie die
anh john » nash john, loh john
wong yun » wong yue, song yun, chong yun

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 yang ((wie rene) OR (wie eine)) anh john wong yun ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang yang ((wie rene) or (wie eine)) anh john wong yun ;*.