It's a series of skits....anyway many Poles/Polish go to Norway to work and in these skits it's in reverse , Norwegians going to Poland to work (kinda like an Italian martial artist going to Hong Kong and he doesn't understand the language/customs , that'd be the plot of Way of Dragon in reverse)
The music you hear when they're being carpenters is from a Eastern European childrens show called "2 good neighbours" , about 2 handymen who does various crazy shenanigans......often involving carpenting so inside joke :
In other skits he goes to Pakistan to sell "faarikaal" (sheep in cabbage , Norse dish) since Pakistanis is selling kebab in Norway , same concept.