Perhaps you should try some spelling variations:
wang wang » wang liang, wang yan, wang yong
wang yang » wang yan, wang liang, wang yanling
der rent » der re, der rede
di rene » di rete, i rene, ii rene
li rong » yi rong, li cong, li song
rong yu » hong yu, rong su, wong yue
tang » tan, lang, gang

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 wang) OR (wang yang)) liang ((di rene) OR (((dr rene) OR (der rent)))) tang li rong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang wang) or (wang yang)) liang ((di rene) or (((dr rene) OR (der rent)))) tang li rong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang wang) or (wang yang)) liang ((di rene) or (((dr rene) OR (der rent)))) tang li rong yu ;*.