Perhaps you should try some spelling variations:
wang yuan » wang yuhan, wang yan, fang yuan
chai wang » chen wang
wang yang » wang yan, wang liang, wang yanling
zhong tai » hong tan, zhong zhi
yang jin » yang jie, yang jun, ying jin
hong hai » shang hai, dang hai, hong tan
yuan ka » yuan kai, yuan kang
ka chai » ka chuan, kim chai

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuan ka chai wang yang jin ((hong hai) or (zhong tai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuan ka chai wang yang jin ((hong hai) OR (zhong tai)) ;*.