Hi,

The image you gave is not a trimming result but a boolean/union, it seems.
Trimming cut the curves and you have to give which pieces have to be removed and then you have only pieces.

Your edges are connected into a curves on your result ?
If yes, you want a union.

If you want non connected pieces, same but you add in a script boolean union + a separate action

(Same... We all respond same time...)