Perhaps you should try some spelling variations:
lang yan » wang yan, wang yang, zhang yan
yan yan » yan yuan, nan yan, yang yang
di rene » di rete, dr rene, i rene
rong yu » hong yu, wong yue, song yun
rong su » cong sun, jeong su, yong suk
tan li » tang li, tian li, gan li
erence » terence, terrence

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan yan ((di rene) or (di erence)) tan li ((rong yu) OR (rong su)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan yan ((di rene) OR (di erence)) tan li ((rong yu) OR (rong su)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan yan ((di rene) or (di erence)) tan li ((rong yu) OR (rong su)) ;*".