Hi @shivagaming555
Short answer is that you cannot do this as both the SSD and the ram are hard mounted on the motherboard and not easily replaceable even if you could find the compatible upgrade parts.
Here's the [https://dl.dell.com/content/manual53358733-chromebook-11-3380-disassembly-and-reassembly-guide-for-use-by-dell-certified-technicians-only.pdf?language=en-us|service manual] if you want to open it up and check for yourself.