Die Geschichte des VW Bulli / the story of the VW Bus/Camper (3 min 13 s, in German):
https://www.youtube.com/watch?v=BK8KvsHl6tk
"Hübsch und praktisch" (pretty and practical), as said in the 1950s ad at the beginning of the video
Made mostly with video ads, and about the 4 first generations.
Thanks to that video, now I know that
Bulli is a mix of
Bus and
Lieferwagen (delivery van). And thanks to Wikipedia, that
Kombi means
Kombinationskraftwagen (combined-use vehicle)