As we know all browsers installed on Linux Mint come patched to use Linux Mint modified Google search if you search directly from the address bar. I prefer the original Google search interface to the Mint's customization of the page (Mint's variant won't show the current time, short info from Wikipedia on the right side, etc; after all I just dislike how the customized search results page looks).
If you use Chromium's / Chrome's synchronization option, then you have the Linux Mint Google search page across your machines on which you used Chromium / Chrome and signed in to the synchronization service. This is quite annoying (you would actually see the Linux Mint search on a Windows machine as well) if you don't like how the search results are presented on the customized page or if you don't use / like Mint.
So here is how to make Chromium use the default Google search for searches from the address bar:
Sign in to your Google account (if not already signed in) - open Chromium / Chrome settings - go to the Settings tab - section Search - Manage search engines (or just type chrome://settings/searchEngines in the Chromium's address bar to go directly to the step we need) - locate the string www.google.com/cse**** - remove it. Linux Mint's search results page is now gone.
Set the search engine you want.
This is the default Google search for me - {google:baseURL}search?q=%s&{google:RLZ}{google:acceptedSuggestion}{google:originalQueryForSuggestion}{google:assistedQueryStats}{google:searchFieldtrialParameter}{google:searchClient}{google:sourceId}{google:instantExtendedEnabledParameter}ie={inputEncoding}