SFDCSearch.com

Right click in your omnibar (URL bar) and click Edit Search Engines...
Near the bottom of the box that pops up, there should be a box that says, "Add a new search engine". Type SFDCSearch in that box.
For keyword, select any short keyword you may like. It could be "salesforce", "SFDC", "SFDCSearch"... whatever you desire.
In the last box, paste this: http://sfdcsearch.com/#gsc.tab=0&gsc.q=%s&gsc.sort=
Click Done.
Now, you can type your keyword in the omnibar, hit Tab, and your query will run through this search engine.

(Ads are the price of using Google CSE for free. If you want to sponsor, let me know.)

SFDCSearch