rabbits escaped and lost

[kdwabbits]

I am a new breeder/4-h club leader for a rabbit club.  We have several rabbits and had our first doe bred.
She had a litter of 5.
they are almost 4 weeks old.
two of the bunnies escaped into the woods behind my house and now I cant find them.
I placed their nest box under the rabbit cages with some food and extra hay hoping they come back to it.
Any other tips or suggestions?
Thanks in advance