How can I view all customer notes in each order box?

On my website safekeychains.com , when you add multiple keychain sets to your cart there is a note that populates that says “custom engraved text” beneath each keychain.

I just placed a test order on my site and when you order multiple keychain sets and leave a note in each box, on Shopify’s back end, I only get the last note that was listed. how can I fix this so that on shopifys back end I see all notes that were left in every box??