Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
ii level » bi level, eu level, 2 level
tang xin » tan xin, tang min, zhang xin
xin gong » xian gong, xin tong
gong hui » tong hui, tong shui, wang hui
li lee » ii lee

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((wang yang) or (yang yang)) ((li lee) or (ii level)) tang xin gong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((wang yang) OR (yang yang)) ((li lee) OR (ii level)) tang xin gong hui ;.
• Adding a wildcard symbol may retrieve word variants: wang ((wang yang) or (yang yang)) ((li lee) or (ii level)) tang xin gong hui ;*.