ricardoblue was making a joke. A taco, as you doubtless know, is a common Mexican fast food. And of course the language isn't the same, as Mexicans speak Spanish.

Most countries maintain a list of needed technicians. The Australian immigration site is supposed to be very good. You can actually figure out whether you have enough points to immigrate. You never know what the shortages will be. They can be surprising. Australia at one time had a shortage of people who could restore antique furniture, now they have a shortage in the trades. Ten years or so ago, the US had a shortage of landscape architects, or so I've been told.