Perhaps you should try some spelling variations:
zhang yan » zhang fan, zhang jian, wang yan
wong yue » wang yue, hong yu
yan yan » yan yuan, nan yan, yang yang
di rene » di rete, dr rene, i rene
li wong » li cong, li rong, li song
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: zhang yan yan ((di rene) or (di erence)) tan li wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: zhang yan yan ((di rene) OR (di erence)) tan li wong yue ;*.