All these probably fair games works on some complicated maths, and for the average person, it's hard to predict the next result so we usually call it that we can win only lucky because we can't predict it accurately each time. People if know how the system works then they will never say that they got a working method or trick in a dice game.
Well, as quoted dice games are highly based upon luck though it has got some math behind its functioning. On a whole with gambling I believe luck is similar to trick in gambling, because however we play finally luck decides whether we will win or lose.