input: Write a python function to find all unique combinations of concatenated words from a list.
  assert find_combinations(["Test", "Example", "Unique"]) == ["TestExample", "TestUnique", "ExampleTest", "ExampleUnique", "UniqueTest", "UniqueExample"]
  assert find_combinations(["A", "B", "C"]) == ["AB", "AC", "BA", "BC", "CA", "CB"]
  assert find_combinations(["Python", "Java"]) == ["PythonJava", "JavaPython"]
output: def find_combinations(words):
      from itertools import permutations
      return [''.join(p) for p in permutations(words, 2)]