Inlcude regex and/or globbing in search query

Problem

The search query appears to only match entire words. Rarely-used commands are hard to find without knowing the complete word.

e.g. Finding an ssh option like PubkeyAuthentication in this command: ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no ubuntu@192.168.0.7 I'd have to know the complete option name since searching for just Pubkey or Auth doesn't match the command I'm looking for:

$ bh Pubkey
$ bh Auth
cat auth
$ bh PubkeyAuthentication
ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no ubuntu@192.168.0.7

Desired behaviour

Option 1. Automatically match partial words

$ bh Pubkey
ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no ubuntu@192.168.0.7

Option 2. Require regex or globbing to match partial words

$ bh "Pubkey*"
ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no ubuntu@192.168.0.7

or

$ bh "\w*Auth\w*"
ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no ubuntu@192.168.0.7