The most common combination of prints will likely be both thumbs and the index finger on your dominant hand — but of course it's completely up to you which fingers you register. (androidcentral.com)
These programs have in common a combination of intensive family support and early education services, and effects on a broad range of child and family risk factors for delinquency. (jstor.org)
Not common combinations I admit, but I think they work well for me. (40plusstyle.com)