Perhaps you should try some spelling variations:
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
out test » out west, about test, root test
ost west » east west
yang lin » yang jin, wang lin, yang liang
wong yue » wang yue, hong yu
yang li » yang di, yang xi, yang yi

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: ((yang yang) OR (wang yang)) wang ((out test) OR (ost west)) ((yang lin) OR (yang li)) wong yue ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yang)) wang ((out test) or (ost west)) ((yang lin) or (yang li)) wong yue ;*.