Yes, when the page you are editing does not have field groups of it own then you need to add the field groups to $options. If you assigned the field groups to the “page” post type they would automatically be added.
You have a field group that appears based on a selection in another field group? And this is working in the back end? As far as I know this can’t be done. You’ll need to explain this further.
The rest of you comments, not sure where you’re going as these things don’t pertain to acf_form(). There isn’t a way to create a search form automatically and importing a csv file has nothing to do with acf_form(), or ACF for that matter. There is not import built into ACF.
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