From a technical perspective, Google and other search engines might be programmed to gather data for you. However, they are not designed to dig deep into data for minute details—instead, they are made to pull from massive quantities of data.
In another example of enterprise search, your data might be stored in different environments, and web search engines wouldn’t be able to move their search from one to another without some manual confirmation from your employees. In other words, the enterprise search engine is only used by the company who owns the platform, and employees who are granted access.