childrenfrom
childrenfrom is a term that appears to be a misspelling or a portmanteau. In standard English, "children" refers to young human beings, and "from" is a preposition indicating origin or source. When combined, "childrenfrom" does not form a recognized word or phrase in common usage.
It is possible that "childrenfrom" is a typographical error for "children from," which would then require context
Another possibility is that "childrenfrom" is an informal or neologistic term used within a specific community