If you are looking for (peer-reviewed) research articles, go to the "Find Research Articles" tab for a full list of library-owned databases to use. For a full list of Google search tips, go to the "Get Search Tips" tab.
To search for publicly available information on the web, limit your searches to government and/or organizational websites using the site: command.
If you want to find statistics, consider putting the word statistics as one of your keywords:
Example: "heart disease" site:org
Example: "opioid addiction" site:gov
Example: "drowning" "statistics" site:gov