does sounds like bus; dose sounds like ros

a wheelbarrow has one wheel (under near the front) with 2 handles for balancing and pushing

a hand cart is a cart with 2 or 4 wheels with a handle for pulling by hand

a dolly in modern days means a 'humanlike' (especially a girl or a woman) toy; at markets or workshops, a dolly is a low, flat and strong platform with wheels underneath for moving heavy load/thing.