Whether "degrees Celsius" refers to a point on the Celsius scale or an interval is ambiguous and is usually determined by context. Although attempts at conventions have existed the effect of typing rather than writing was not considered when they were created and so those conventions are largely ignored. In this case there is no context so google uses "degrees celsius" and "celsius degrees" to distinguish between a scale point and an interval which is a nice natural language solution in my opinion.
To better see what is happening try: