Jumble

Yesterday I got through the four preliminary words in the daily Jumble puzzle, but the final phrase stumped me. It needed two five letter words: something of something. Looking at the letters I had to work with I realized the solution was probably two identical words. Some fooling around and I realized the words could be SHAPE or PHASE, neither of which made any sense. This morning the answer appeared: What do you find in a junkyard? HEAPS of HEAPS. There is probably a word to describe words that use the same set of letters. Algoriphone maybe?