Confirm

I heard bill gates had short position on Tesla. I wanna find out if this is true through searching or googling. Give me some keywords that I can start with.

Is this natural English?

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Yes, your sentence is largely correct in terms of English grammar and coherence. However, it could be slightly rephrased to read more naturally:

"I heard that Bill Gates has a short position on Tesla and I want to confirm if this is true. What keywords should I start with when searching or googling this topic?"

As for your query, here are some keywords you can use: "Bill Gates short position Tesla", "Bill Gates Tesla investment", or "Bill Gates Tesla stock position". Remember, it's crucial to check multiple reliable sources due to the fluid nature of stock trading, as the current position of Bill Gates could have changed.

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Do you use “confirm” when you want to learn more about something instead of “find out”?

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Both "confirm" and "find out" can be used in this context, but they subtly differ in meaning:

1. You use "find out" when you seek new information that you have not known or heard about before. For instance: "I want to find out about Bill Gates's investment in Tesla".

2. "Confirm", on the other hand, is used when you have already heard or known something, and you just want to verify or establish the truth of that information. For instance: "I heard about Bill Gates's investment in Tesla and I wanted to confirm this."

Hence, in your original query, given that you have heard something and are seeking to verify its credibility, "confirm" would be more appropriate.