It seems there are others who don’t like the new “feature” of automatically playing a random mix from a song in a search result, but there is no idea to bring back the old behaviour and/or make this a switchable option, I think.
This had already been available in the iOS app for a long time, as far as I know, and then was implemented in the other apps as well. But it does not allow to simply sort and play the found tracks in a row anymore which was one of the best Deezer features compared to other providers.
Here are some related forum threads, but there may be more: