bookmark keyword not matching single term in multi term search

Hi Wendy_MSFT and everyone else,

I've been using Bookmarks ever since they became available in my tenant. We've tried to stop using SharePoint search best bets and move everything over.

BUT

When our users do a search with multiple terms e.g.     pnid christchurch

I would expect that they then see any bookmark with the PNID keyword or any bookmark with the CHRISTCHURCH keyword

What I find is that only book marks with keywords that exactly the match the terms used in the search show up.

What am I doing wrong ?

When our users search from the black bar at the top of the intranet site they are taken directly to the Organizational search (we want them to have a broad search experience) straight away. If they search for PNID they will get the bookmarks I've setup in https://admin.microsoft.com/Adminportal/Home?source=applauncher#/MicrosoftSearch/bookmarks that have the PNID keyword.
But if they search for pnid christchurch they don't get shown any bookmark.

Is there some setting I can change that makes bookmarks appear when ANY term matches a Keyword in the bookmark ?