Magento – How does Magento 2 Search work with ‘-‘

I have 4 products in catalog with names:

aaa

bbb

aaa-bbb

aaa_bbb

When I try to search "aaa", I get aaa, aaa-bbb and aaa_bbb products as a result (screen 1)

When my query is "bbb", I get only bbb and aaa-bbb (screen 2)

"aaa-bbb" query gives me all my products (screen 3)

And finally query "aaa_bbb" returns me only one product (screen 4)

So, can you please explain me how it works and how I can change this logic?
Specifically, I need to get only aaa-bbb product, when I search "aaa-bbb".

Did I understand correctly, Magento search engine explode my query by '-' symbol? I didn't found the confirmation of this in code, but as I see by search results it's looks like true.

Thank you for attention 🙂