/ˌdɪfəˈrɛnʃəl ˈpraɪsɪŋ/ – Phrase
Definition: Phân biệt giá.
A more thorough explanation: the practice of charging different prices for the same product or service depending on such things as type of customer, region, etc.
Example: A differential pricing scheme for tap water will take effect for residents in Hebei next year.