How can I generate every possible combination of a given array of numbers that aren't duplicates of each other? [closed]

Let's say I have a given array of numbers looking something like this {1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4} and I want to get every combination E.g. {1, 2, 3, 4, 4, 2, 1, 1, 2, 1, 3, 3, 4, 3} but I don't want to have duplicate combinations for example if you would get a result where the first and seventh were exchanged.

I've tried getting every combination even duplicates but as you can guess this escalates pretty quickly.

Thanks for your answers in advance!