"got back ... got back." These two words translate the same Hebrew word. Your language may also have a word for a person getting his own property back from the person who stole it that is different from the word for a person getting his wife back from those who have captured her.
# rescued his two wives
"got his two wives back" or "saved his two wives from danger"
"None of the items the Amalekites had stolen were lost"
# neither small nor great
Possible meanings are 1) "neither unimportant people nor important people" or 2) "neither physically small nor physically large." See how you translated similar words in [1 Samuel 30:2](./01.md).