The term 'small poisonous snakes' can be summarized by the acronym ASPS, which stands for 'adders, vipers, cobras, and pythons'. These four species of snakes are all venomous and can be found in various parts of the world. Adder snakes are found in Europe, North Africa, and Asia, while vipers are found in Europe, North Africa, and Asia. Cobras are found in Africa, India, and Southeast Asia, and pythons are found in Africa, Asia, and Australia. All of these snakes are considered dangerous and should be avoided.