Why my App is not visible in all languages on play store?

[AC Question]

My app title is Calculator and it is localised and since publishing if I search on play store Calculator my app is not on the search results. But if I search it by translated name on Croatian (Kalkulator), Greek (Αριθμομηχανη) and on other languanges such as French or Spanish my app is shown,

Ideas on what is going on and why only "Calculator" search does not work? I have added English etc. and no excluded devices. Also I have checked it on multiple phones and the problem exists.