Like Quicksilver, Alfred, Launchbar, Butler, Raycast, and many other launchers, you can train Spotlight to always launch the same thing depending on what abbreviation you type.
The next time you go to launch Chrome, type ch and then use the arrow keys to navigate to the Chrome result to launch it.
You may have to do that for one more launch. After that it should always launch Chrome with ‘ch’.
The next time you go to launch Chrome, type ch and then use the arrow keys to navigate to the Chrome result to launch it.
You may have to do that for one more launch. After that it should always launch Chrome with ‘ch’.