Perhaps you should try some spelling variations:
silk china » risk china
kyoung yun » young yun, kyoung yang, young eun
hyoung gun » young eun
long span » long han
china kim » china kai, china key
dong di » dong sin
yu a » you a, eu a, u a
ye a » yet a, e a, me a

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((long span) or (dong di)) ((yu a) or (ye a)) silk china kim ((kyoung yun) OR (hyoung gun)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((long span) OR (dong di)) ((yu a) OR (ye a)) silk china kim ((kyoung yun) OR (hyoung gun)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((long span) or (dong di)) ((yu a) or (ye a)) silk china kim ((kyoung yun) OR (hyoung gun)) ;".
• Adding a wildcard symbol may retrieve word variants: ((long span) or (dong di)) ((yu a) or (ye a)) silk china kim ((kyoung yun) OR (hyoung gun)) ;*.