I have had no luck with just 1 dog, but is simple with 2 or more, as then you have something to work with to start, so the dog thinks, now just which dish can I eaqt ouit of without getting my ass ate out, and then just go from there.
I don't know how it would work with Thai dogs as they do not seem to be as civilized as other dogs, kind of like the people, ain't been out of the trees long and not to domesticated.
Easiest I have ever tried with was a Springer Spaniel that I had had since she was 28 days old and was with her a lot and a German wirehair pointer, but I raised both dogs and they paid attention to me when I spoke to them.
and I was the only one that was allowed to feed or work the dogs and they worked well together even tho one was a jump dog and the other was a pointer, and it is something to see when a springer honors a point.