Perhaps you should try some spelling variations:
yang yan » yang yang, wang yan, yang fan
yang den » yang dean, gang der, yang di
rong yue » rong yu, hong yu, wang yue
wong yue » wang yue, hong yu
di rene » dr rene, i rene, ii rene
yang li » yang lin, yang di, yang xi
rete » crete, grete, rente

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 yan) OR (yang den)) ((di rene) OR (di rete)) yang li ((rong yue) OR (wong yue)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang yan) or (yang den)) ((di rene) or (di rete)) yang li ((rong yue) OR (wong yue)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yang yan) or (yang den)) ((di rene) or (di rete)) yang li ((rong yue) OR (wong yue)) ;*.