Perhaps you should try some spelling variations:
sharing risk » sharing best
during risk » using risk, during crises, during crisis
dong hoang » hong hong
among shu » cong shu, among eu, among sex
among sri » among sex, among di, among ers
up cost » up costs
yaa » yana, yala, yama

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong hoang yaa up cost ((sharing risk) OR (during risk)) ((among shu) or (among sri)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong hoang yaa up cost ((sharing risk) OR (during risk)) ((among shu) OR (among sri)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong hoang yaa up cost ((sharing risk) OR (during risk)) ((among shu) or (among sri)) ;".
• Adding a wildcard symbol may retrieve word variants: dong hoang yaa up cost ((sharing risk) OR (during risk)) ((among shu) or (among sri)) ;*.