Welcome to the site!
I think i can answer your question.
The results you are seeing are probably the result of non-contiguous matching. That is, the results are files that might match something like "He
Now these should get low scores compared to results that have the full word "henry" in them, so most people leave non-contiguous matching enabled.
BUT if you want to disable it, you'll find the option here:
One benefit of disabling this option is that search speed should increase a bit.