it's been a long time but I seem to recall some software actually had localized shortcuts, e.g. find&replace dialog was ctrl+T in the italian version of MS Word, which I think makes sense for the naming "trova" but I'd expect to be different in the original version. But maybe MS Office is special (cfr: localized VBA syntax)

Sadly, checking now on my girlfriends' QWERTZ+Hungarian version of MS Office it seems it's ctrl+F notwithstanding the sheer lack of an F in "Keresés".