Hi Pilou and thanks for the reply, but this is cut in two steps one with external closed surface and then I need to cut this holes after. 
the surfaces you see I can cut in those areas, but it is then with the other holes that I encounter problems and some are not cut at all.

As you can see, hovewer I looked on the surfaces better and the control point are a bit messy I will try to reduce errors on these simple surfaces.



Trimmed in two steps and works on this zone you have pointed


here the messy CV on these surfaces