Emphasizes a non-specific distribution in multiple locations, good for describing spread out items or features. You can find small cafes here and there in the city.
Pro Tip 2/3
Not Centralized
Suggests that things are not focused in one area, useful when the exact spots are unknown or irrelevant. Wildflowers grew here and there along the roadside.
Pro Tip 3/3
Minimal Presence
Sometimes implies a small number or amount in various places. There was only a bit of snow here and there on the ground.