I live some of the time in Bali, and there are heaps of stray dogs, often organized in packs, there.
Down the road from my house there are a LOT, especially at night, and while they aren't descended from some gigantic Romanian hunting hounds, they're still pretty nasty, and have been known to attack people.
There are two ways I use to deal with it, make yourself a small target, just walk by and COMPLETELY ignore them, they'll no doubt bark threateningly at you, but will probably decide you're beneath their interest and go back to licking their groins, eating trash and humping.
But if there's a big enough pack, or if they're right in your way and you can't pass them, you need a big stick, plant your feet firmly in a not quite aggressive, but ready pose, and as soon as they show an interest in you, start to raise the stick. If they get close, stamp your foot and shout, and fake-lunge at them.
BUT, I don't know quite how crazy these dogs are, my tactics quite probably wouldn't work.
Spiked, or even simply thickly padded, clothing should work quite well.
I know at a dog shelter I volunteered at, they had these large, thick leather mittens which reach up the forearms.
Romania's pretty cold, right? You could probably justify a pair of *cow leather mittens*.