Reverse search (CTRL+R): search command history with auto-complete

CTRL+R (reverse-i-search)`’:
Searches back through the command history using auto-completion.

e.g.

pwd
cd Folder1
cd Folder2
ls

This being the command history.

Pressing CTRL+R now outputs the following:

(reverse-i-search)`’:

Now auto-complete will search the command history based on your input.

Pressing P will bring up pwd. Pressing L would bring up ls.

However as the cd commands are so similar more input is required to differfentiate.