I don't think there is any biases behind it.

Google is incentivized to return you results. And there are probably not enough Malaysian restaurants in Fremont.

So I would assume they have some data that says "people who like Malaysian cuisine tend to like Burmese cuisine as well".

And so they are returning them as well.

It does the same quite often. I am French and I live in Thailand. If I look for "crepes" it will return me results about "roti" (which for any French person is a disaster)