Complex sentence: The term Mie theory is sometimes used, but it does not refer to an independent physical theory or law, and the phrase "the Mie solution (to Maxwell's equations)" is more precise.
Split into simpler sentences: The term Mie theory is used on occasion; however, it does not refer to an independent physical theory or law. In this respect, the phrase "the Mie solution (to Maxwell's equations)" is more precise.