Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan hat » bidan what
gong meng » gong gang, gong min
tan yang » dan yang, tan ying, tan yong
yang jin » yang jie, yang jun, ying jin
run tan » run gain, run pain
hong ma » hong a, hong tan, hong hai

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 hat run tan yang jin ((hong ma) or (gong meng)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan hat run tan yang jin ((hong ma) OR (gong meng)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan hat run tan yang jin ((hong ma) or (gong meng)) ;*.