In Pratumnak i use to walk past 40 soi dogs in the woods sometimes, usually in packs. Tips:
As you approach them talk softly, it's the tone of voice they detect.
Don't carry a stick it makes you more aggressive and can kick the dogs off, get a telescopic batten from Lazada, in a waist bag, i never needed to get mine out.
If you encounter an alpha aggressive dog, be careful not to turn your back that's when they can bite