bank on
it is no use banking on luck

be down
to be down in one's luck

beginner
beginner's luck

down
to be down on one's luck

hard
hard luck!

luck
any luck?

luck into
obter por sorte

luck out
ter sorte

matter
a matter of luck

piece
a piece of luck

press
to press one's luck

push
to push it / to push one's luck

refer
to refer one's failure to bad luck

rotten
rotten luck

rough
rough luck

run
a run of ill luck

slice
a slice of good luck

streak
an unlucky streak / a streak of bad luck

stroke
what a stroke of luck!

tough
tough luck!

try
to try one's luck