Perhaps you should try some spelling variations:
dpr debate » der debatte, war debate, del debate
u.s debate » u.s senate, 2.1 debate, 3.4 debate
crises how » crisis how
yan tying » fan ying, ran ying, tan ying
up debate » un debate, _ debate, a debate
how race » how space
wan yan » wang yan, nan yan, wai yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan tying ((((up debate) OR (u.s debate))) or (dpr debate)) during crises how race ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan tying ((((up debate) OR (u.s debate))) OR (dpr debate)) during crises how race ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan tying ((((up debate) OR (u.s debate))) or (dpr debate)) during crises how race ;*".