将一个数组中的所有元素与其他数组进行比较

Let's say I have three mutablearrays: arr1, arr2 and arr3. I want to compare all the element in arr1 to each element in arr2, and if an element in arr2 contains all the elements in arr1, i want to add it to arr3. So i'm thinking it would look something like my code below. Is there some smart function in objective-c i don't know about, or any way this could be done?Let's say I have three mutablearrays: arr1, arr