Perhaps you should try some spelling variations:
jiang juan » jiang nan, huang juan
step main » step machine
juan one » juan jose, juan rene, than one
one step » one stop
nan yan » nan ya, wang yan, qian yan
yang xi » yang jui
yang yi » yang jui
cong » congo, long, hong

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: ((nan yan) OR (((((yang xi) OR (yang di))) OR (yang yi)))) jiang juan one step main cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nan yan) or (((((yang xi) OR (yang di))) or (yang yi)))) jiang juan one step main cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: ((nan yan) or (((((yang xi) OR (yang di))) or (yang yi)))) jiang juan one step main cong shu ;*.