Returns disambiguation page, the top link of which is for "Osaka, Osaka : An area within Osaka, the major city listed above". Clicking on this link sends you to a DDG search page which has Hiroshi Osaka's profile as the zero click info.
I would assume that it would show me the wiki page for Osaka, since the wiki page for "Osaka, Osaka" redirects to it.
Perhaps this is because a wiki search for Osaka returns a disambiguation page with two groups
"Osaka or Ōsaka may refer to:"
and then
"Osaka may also refer to:"
Notably, the top group seems like it should have higher priority but the DDG search returns only info from the second group