Does melee strike range affect the dash distance on skills like shattering palm?

A bit confused about how to increase the dash distance of skills like this. Should I be focusing on melee strike range or area of effect? I am finding my build very clunky when killing one pack but then being too far from the next pack and having to run and risk being stunned.

From what I gather melee strike range should increase the dash distance and increases area of effect will increase its shattering ice shards.