Hidden Line Display

I have a few lines which are “dashed” and “hidden” type. When I do the drawing in the viewport, I can’t see the lines in dashed or hidden form unless I zoom it a lot. However, when I do printing the dash and hidden lines get visible good enough. Could you please tell me how to fix the problem?

I have discovered a solution just now; Go to Tools>Option>LineTypes>Linetype scale>(a bigger value)