Perhaps you should try some spelling variations:
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
out test » about test, root test, post test
out west » ost west, south west, out what
tin hong » tan hong, kia hong, thi hong
yan tin » yuan ting, yang jin, yang lin
hong yu » wong yue

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 (out west)) yan tin hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang yang)) wang ((out test) OR (out west)) yan tin hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yang)) wang ((out test) OR (out west)) yan tin hong yu ;*.