enable to retrieve Rijeka (CRO) coordinate ?

Hello, I try to get the coords of Rijeka (croatia) with JSON but it didn t work, so I try directly with the website, like this :

https://nominatim.openstreetmap.org/ui/search.html?city=rijeka&country=croatia

and I ve got a not found result.

It did works for Rijeka in Bosnia and Herzegovina, but not for the one in croatia ? How can I achieve this ?

thx