Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
yuhan yang » yuhuan huang
yang all » wang all, yang dali, yang li
ein gang » ein ganz, ein zugang, ii gang
den gang » deng gang, der gang, den umgang
hong shu » cong shu, tong shui, wong shiu
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuhan yang all ((ein gang) or (den gang)) li ((hong shu) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan yang all ((ein gang) OR (den gang)) li ((hong shu) OR (hong yu)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yuhan yang all ((ein gang) or (den gang)) li ((hong shu) or (hong yu)) ;*.