Perhaps you should try some spelling variations:
yidan chang » yuan chang, shiyan chang
wang yidan » wang yan
chang yun » chong yun, chang hsun, chae yun
chang mae » chang ha, changes made
yun chen » yung chen, yu chen, yuan cheng
yang jin » yang jun, ying jin, shang jin
yang jie » yang xi, yang yi, yang jun
yang jui » yang judy, yang xi, yang yi

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 chang yun chen ((((((yang jin) or (yang jie))) or (yang jui))) or (yang di)) chang mae ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan chang yun chen ((((((yang jin) OR (yang jie))) OR (yang jui))) OR (yang di)) chang mae ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan chang yun chen ((((((yang jin) or (yang jie))) or (yang jui))) or (yang di)) chang mae ;*.