Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yan
wang yong » wang yang, wang hyoung, wang yan
di rene » di rete, dr rene, i rene
li hong » le hong, li cong, li song
li rong » yi rong, li cong, li song
erence » terence, terrence
tang » tan, lang, yang

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