We bought our original four Boer does out of a large herd and they had never been human imprinted for sure. We got them home, let them out of the trailer into the pasture and off they went....thought I'd never see them again much less be able to have "pet quality" goats.
We originally used deer corn, then other treats and feed, but slowly they warmed to us. A couple of them became extremely people friendly, one other mostly friendly, and the last one would come for the hand out but - Don't Touch Me. We have gotten rid of three of the four now and still have, of course, the one that is the least people friendly. As it turned out she is the best quality of the four and is the most "goat friendly". She's herd queen over what is now mostly Myotonic does and she is usually a gentle queen.
But be patient, keep working with them and if possible sit with them in small spaces. Several of our recent does were not friendly at all until kidding time. At kidding we pen them. Being in there with them frequently (mainly to imprint their new kids), hand feeding the doe, etc, seems to work almost 100% of the time to gain their trust. But having that time in a more confined space and not forcing anything, in my opinion, is key.