Perhaps you should try some spelling variations:
chang hsun » chang ch'un, chung hsuan, chang su
wilke rene » wie rene
yan liang » yang liang, wang liang, you liang
yan guan » gan guan, yan yuan, yang guang
di chang » ii chang, yi chang, jin chang
yan kun » yan yuan
wang » wing, lang
yang » lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wan) ((((yan kun) OR (yan liang))) OR (yan guan)) wilke rene yang di chang hsun ;~.
• Adding a wildcard symbol may retrieve word variants: (wang or wan) ((((yan kun) or (yan liang))) or (yan guan)) wilke rene yang di chang hsun ;*.