I have several VOB files from a family DVD. I want cut into several segment, rearrange the clips, and join into one file.

I downloaded VSDC Free Video Editor and starting using. But it seem the cut feature and rejoin the clips are very tedious.
Is there any other FREE video software when I cut and drag into the timeline, it will snap on (auto connected previous clip with new clip)? Right now in VSDC Free Video Editor, it doesn't align from frame to frame.