Hmong has similarities, which are called 'shared culture' in western philosophy. in Asian lineages and past-times, these are interchangeabl e with shared origin. in other words, for ex. there are those fair, skin complexion and bone structure of Hmong and Chinese that are similar because we all have a common ancestry tablet system, so to speak. originally, back in those days, just about any brother can take care or continue the love, care, support, etc. toward his widowed sister-in-law and nephews or nieces, not necessarily 'marrying' your sister-in-law. just like how Hmong call their SIL 'niam' the variant in Chinese is 'niang'. the basic numbering system and formal addressing are similar; now, that's what you call similarities.