There is no universal finite set of business principles. In the aggregate, there are over several hundred of them. Many of them are not applicable to every industry, on the contrary, many are specific to a unique business or industry. The best approach to understanding business principles is to look at this in a holistic manner, i.e. overall doctrine down to a few rules specifically designed for that one business.
In business, tenets are universally applicable principles that every business must adhere to in order to be successful. Tenets are the core business principles on which other principles are built.