I suggest that 'wow' should be accepted as well as 'oh wow'
I don't think "oho" and "oh wow" mean the same. I wouldn't use them in the same situationa.
Owo whats this?
Why not oops?
Oho is not oh wow
Is there a difference between "mikä" and "mitä"?
They're the same word in different cases. "Mikä" is in nominative singular form while "mitä" is in partitive singular form.
It's common in Finland to say oho like the American oops