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 » wong yue, rong yu, hong yu
di rene » dr rene, i rene, ii rene
yang li » yang lin, yang di, yang xi
li rong » yi rong, li cong, li song
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 ;~.
• 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 ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yang yan) or (yang den)) ((di rene) OR (di rete)) yang li rong yue ;*.