Results you retrieve from Google searches are found on the surface web where information is not evaluated. Results from library databases are found on the deep web where information is evaluated. With Google searches you're finding only the tip of the iceberg.
Library databases help you find information that has been vetted and checked for accuracy. Also, library databases help you find articles that you can't find via Google.
Full text of core scholarly journals in the humanities, social sciences, and sciences. Browsable by discipline and full-text searchable across all disciplines. Years available vary with each title, but the most recent issues available in JSTOR will be 3-5 years old.
Multi-disciplinary database providing indexing, abstracts, and selected full text for peer reviewed/scholarly articles, magazines, trade publications, and newspapers in all fields of study.