is there any way for cutting or trimming lines thar are top of each other with distance ?sketchup could not detect intersect line in orthographic view.
A single line in space lies within an infinite number of planes.
Where two lines that do not touch theoretically meet, depends upon the plane in which one or the other line lies.
Define the plane in which one line lies to determine where the second line intersects the plane.
Draw temporary geometry incorporating one of the edges in question, thereby creating a face in the desired plane.
Then notice the lnference Engine detects the Intersection of the second line and temporary face.
Knowing your inference types — SketchUp Help