Perhaps you should try some spelling variations:
huang ying » huang ting, huang yang, huang bin
huang jing » huang ting, wang jing, huang bin
del debate » deal debate, el debate, ce debate
crises how » crisis how
di debate » aid debate, dpr debate, _ 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) OR (huang jing)) ((di debate) or (del debate)) during crises how safe ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((huang ying) OR (huang jing)) ((di debate) OR (del debate)) during crises how safe ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((huang ying) OR (huang jing)) ((di debate) or (del debate)) during crises how safe ;*".