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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan ying ((u.s debate) OR (u.s senate)) during crises ((how scale) or (how small)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ying ((u.s debate) OR (u.s senate)) during crises ((how scale) OR (how small)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ying ((u.s debate) OR (u.s senate)) during crises ((how scale) or (how small)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yan ying ((u.s debate) OR (u.s senate)) during crises ((how scale) or (how small)) ;*.