Perhaps you should try some spelling variations:
joon chang » hoong chang, boon chong, jin chang
juan wang » yuan wang, juan meng, juan rana
wang yang » wang yan, wang liang, wang yanling
yang joon » kyung joon, yang jin, yang jun
yan clan » das clan, yan guan, yan yuan
chang ca » chang ha, chang c, change can
yan san » yan guan, yan wang, yan yuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: nan ((yan san) or (yan clan)) juan wang yang joon chang ca ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nan ((yan san) OR (yan clan)) juan wang yang joon chang ca ;*.