Perhaps you should try some spelling variations:
debat during » debate during, debt during, exit during
crises how » crisis how
jin debat » un debat
wei yang » pei yang, wei wang, wei yang's
yang jin » yang jie, yang jun, ying jin
how race » how space
wai yan » wang yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wai yan) OR (wei yang)) yang jin debat during crises how race ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wai yan) OR (wei yang)) yang jin debat during crises how race ;".
• Adding a wildcard symbol may retrieve word variants: ((wai yan) OR (wei yang)) yang jin debat during crises how race ;*.