I think you have two issues here.
1 - I don't think the NC series VMs are available for your selected region at this time so you may need to choose another region.
You can check this here: https://azure.microsoft.com/en-us/global-infrastructure/services/?products=virtual-machines®ions=asia-pacific-east,asia-pacific-southeast
2 - You will have to request a vCPU quota increase for your Azure subscription for your selected region (if available in that region). By default, the quota is usually set to zero for some of the GPU enabled VMs. Here is how to request a quota increase:
https://learn.microsoft.com/en-us/azure/azure-portal/supportability/per-vm-quota-requests