Nothing came up for it on Google... The "Charming" in the name may refer to cutting these into charm squares, 5". And "Four Square" might be a 4-patch of 4 charms in these fabrics. It may be something as simple as a bunch of four patches with sashing in between, or perhaps solid squares alternated with the 4-patches.
If you look up 4 Square quilts, you'll see many to choose from.