Palindromic Manuscript

The caverns lead to a long-forgotten staircase, ascending into the scent of dust and paper. Shelves stretch into darkness, each book glaring at you as though aware of its neglect. One tome falls open, revealing a sentence that reads the same in both directions, hiding mirrored words within.


Question:
An ancient manuscript reads: ‘No lemon, no melon, mad Bob, level deed.’ How many palindromic words (3+ letters) are in this famous phrase?