Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yuan » yan yuan
chen yang » chen rong
yuan bei » yuan fei, yuan hui, yuan kai
bei chen » frei chen, jui chen, yi chen
meng fei » feng fei, meng wei, wang fei
yang li » yang lin, yang di, yang xi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan yuan bei chen yang li ((meng fei) or (meng xin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan yuan bei chen yang li ((meng fei) OR (meng xin)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan yuan bei chen yang li ((meng fei) or (meng xin)) ;*.