There is a difference between Dhamma and these dhammā. Excerpt from Milinda Panha below.below;
“Dhammo kho, mahārāja, sabba-sukhumo, na kho, mahārāja, dhammā sabbe sukhumā, ‘sukhuman’ti vā ‘thūlan’ti vā dhammānam-etam-adhivacanaṃ.
‘Truth (Dhamma), O king, is the most minute and subtle. But this is not true of all qualities (Dhammā). Subtleness or the reverse are epithets of qualities. (I think this is Rhys Davids original pali to english)
Here is a much later translation from also pali to english
"Kiṃ pana, bhante, sabbaṃ sukhuman”ti? ..." "What, revered sir, is everything that is subtle?" "Dhamma, sire, is all-subtle, but not all dhammas, sire, are subtle; this is a synonym of dhammas, sire, 'subtle' or 'coarse'."- I. B. Horner
Perhaps this is what you're getting at.