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 "
Heavy
No
rwa
y".
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.