What a journey you have all been through. Your daughter is certainly very lucky to be exposed to so many languages at home. My 5 Australian children eagerly set upon learning the Cambodian language when we moved here 6 years ago. Now, they are all different at stages of language development in Khmer even though they all started at the same time. One is speaking fluent described as native sounding by locals. Another observation is my boys do not have half the vocabulary of my daughters. Although come to think about it my3 daughters never want to stop talking and singing like your daughter now, so that makes sense lol.