have bạn tried smearing some đậu phụng, đậu phộng bơ on the back of the tub? first just put your dog in the tub but don't wash she just let she lick the đậu phụng, đậu phộng butter, and praise her. tiếp theo time do the same but turn on the water and wet her feet, and see the reaction and finally give her a bath. hope this helps, let me know how it goes!