Perhaps you should try some spelling variations:
crises china » crisis china's, classes china, crises asia
can postal » bank postal, a postal, can costa
china text » china teil, china term, china context
yan ying » fan ying, ran ying, tan ying
eu court » _ court, a court, au cours
der cost » oder cost, user cost, debt cost
wang » wing, 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 ying ((((eu court) OR (can postal))) OR (der cost)) during crises china text ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang OR wan) yan ying ((((eu court) or (can postal))) or (der cost)) during crises china text ;~".
• Adding a wildcard symbol may retrieve word variants: (wang OR wan) yan ying ((((eu court) or (can postal))) or (der cost)) during crises china text ;*.