Using get-adUser with Multiple Filter items

I am trying to filter on 2 different conditions:

• disabled accounts
• description like 'disabled'

This works:

get-adUser-Filter ('description -like "DISABLED*"') -SearchBase ....

and this works:

get-adUser-Filter ({Enabled-ne$true}) -SearchBase

BUT ... this does not:

get-adUser-Filter (('description -like "DISABLED*"') -or {Enabled-ne$true}) -SearchBase

Any ideas/suggestions are appreciated.

Thanks