Perhaps you should try some spelling variations:
sharing risk » sharing best
during risk » using risk, during crises, during crisis
can lost » can cost, can lose, can post
nan yan » nan ya, wang yan, qian yan
yang mu » yang muxi, yang jui, yang jun
yang du » yang di, yang d, yang jui
yan zi » yan zhi, yuan zi, ban zi

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

• Performing a fuzzy search may retrieve terms with similar spellings: nan yan zi ((can lost) or (von karl)) ((sharing risk) OR (during risk)) ((yang mu) or (yang du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nan yan zi ((can lost) OR (von karl)) ((sharing risk) OR (during risk)) ((yang mu) OR (yang du)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nan yan zi ((can lost) or (von karl)) ((sharing risk) OR (during risk)) ((yang mu) or (yang du)) ;*".