We have always used liquid adhesive (glue) found in a can (not squeeze bottle)at any Home depot, Lowes, Menards, True Value, whatever you prefer, we would use a small paint roller and apply the adhesive to both surfaces, veneer and cabinet. We always make sure we get the outer edges thoroughly applied. Then after we adhered both pieces together we rolled the outer surface to remove any air entrapment.
Your question wasn't very descriptive or detailed so not 100% sure what you are trying to accomplish.