Get-ADGroup does not return anything if search string is stored in a variable

PowerShell Help
1

This one has me flummoxed. Here is what i am doing.

  1. Save search string in a variable
$currAccount = "aws-eis-" + $account + "*Network-Admins*"
$currAccount
aws-eis-229759325811*Network-Admins*
2. Query using Get-ADGroup cmdlet, does not return anything 
Get-ADGroup -filter {Name -like "$currAccount"}
3. If i run Get-ADGroup using the exact search string, result obtained. 
PS C:\> Get-ADGroup -filter {Name -like "aws-eis-229759325811*Network-Admins*"}

DistinguishedName : CN=aws-eis-229759325811_zoominterop-prd-Network-Admins,OU=Non-Regulated,OU=Automated,OU=Security,OU=Groups,OU=Objects,DC=ABC,DC=XYZ,DC=com
What am i doing wrong ?
2 
$currAccount = 'aws-eis-' + $account + '*Network-Admins*'
Get-ADGroup -filter 'Name -like "$currAccount"'