Perhaps you should try some spelling variations:
yan chang » yuan chang, han chang, can change
yan zhang » yuan chang, bin zhang, han chang
yun gain » run gain, n gain, yun hin
you gain » you can
kang hay » eang hay, kang han, dang hai
yang xi » yang yi, yang jui
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan chang) OR (yan zhang)) ((yun gain) or (you gain)) ((yang xi) or (yang di)) kang hay ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan chang) OR (yan zhang)) ((yun gain) OR (you gain)) ((yang xi) OR (yang di)) kang hay ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan chang) OR (yan zhang)) ((yun gain) or (you gain)) ((yang xi) or (yang di)) kang hay ;*".