Perhaps you should try some spelling variations:
deal debate » del debate, legal debate, el debate
wang huang » wang luhang, wang hua, wang liang
huang ying » huang jing, huang ting, huang yang
crises how » crisis how
di debate » aid debate, del debate, dpr debate
how safe » how safety, how space, how scale

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang huang ying ((di debate) or (deal debate)) during crises how safe ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang huang ying ((di debate) OR (deal debate)) during crises how safe ;*.