Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yang jean » yang dean, young jean, yang fan
yang yan » wang yan, yang fan, yang yao
di rene » di rete, i rene, ii rene
dr rene » der rent
yang li » yang lin, yang di, yang xi
li hong » le hong, li cong, li rong
hong yu » wong yue

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((((yang yan) or (yang yang))) or (yang jean)) ((di rene) OR (dr rene)) yang li hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((((yang yan) OR (yang yang))) OR (yang jean)) ((di rene) OR (dr rene)) yang li hong yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((yang yan) or (yang yang))) or (yang jean)) ((di rene) OR (dr rene)) yang li hong yu ;".
• Adding a wildcard symbol may retrieve word variants: wang ((((yang yan) or (yang yang))) or (yang jean)) ((di rene) OR (dr rene)) yang li hong yu ;*.