I have a fancy metal detector that works great for finding lost arrows, wether they're buried in snow or buried in the ground, as long as the animal doesnt run off with it and as long as you have a slim idea of whereit impacted the ground and/or the direction it went it usually only takes a minute for me to find one...
the bad thing is that you have to go BACK with the metal detector and get them, which I find is kind of hard to find the ambition to do...
in fact I still have an arrow behind my parents that I have to go pick up, my dad has one lost in the field I have to get too...

with all the snow we have on the ground they're waiting till spring now...