Perhaps you should try some spelling variations:
crises jordan » crises japan, crises jean, rates jordan
sound credit » should credit, bond credit, fund credit
crisis were » crises were, crisis war, crisis before
crisis wave » crisis have, crisis pavel, crisis case
yan ying » fan ying, ran ying, tan ying
wang » wing, wan, 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 yan ying sound credit rating ((crises jordan) OR (((crisis were) OR (crisis wave)))) six ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ying sound credit rating ((crises jordan) or (((crisis were) OR (crisis wave)))) six ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan ying sound credit rating ((crises jordan) or (((crisis were) OR (crisis wave)))) six ;*.