If you want to use Google for research, use Google Books or Google Scholar.
Use the Advanced Search for more searching options.
Remember that Google Books search results do not necessarily include the full text of the book; some include no text at all, some include a limited preview (only some pages of the book).
When you use Google Scholar, make sure to update your Scholar Preferences (see below) so you'll be able to use UC e-links to find the UC Berkeley library locations/online availability of the articles.
Step 1: If you haven't already done this, set up your proxy server access by following the directions at https://www.lib.berkeley.edu/help/proxy-server .When you get to a point where you are accessing resources that the Library pays for, you will be prompted for your CalNet ID and password. For more help see: https://www.lib.berkeley.edu/doemoff/tutorials/proxy.html
Step 2: Change your preferences so "UC elinks" shows up in your search results. To do this:
Click on the menu icon 
in the upper left corner and then the gear icon
to reach the settings page.
On the next screen, choose Library Links from the left-hand menu.
In the search box, type the word Berkeley. Choose University of California, Berkeley - UC-eLinks, and Open Worldcat Search.
Click on "Save Preferences" at bottom of page
You already know that you should evaluate anything you find on the Internet. Here are some reminders of what to look for.