Be flexible and revise your searches as needed. It's helpful to write down what terms you've used, or save your search history.
Most all databases have similar search functionalities.
An example of using these search functions in Sociological Abstracts:
Our article databases are enabled with a Find It @ PSU green button which connects you from the database you are searching to the holdings of specific articles in our Library.
If the article citation in your search results does not include a link to the full text PDF file, use the green Find It @ PSU button to check online or print availability via the Library catalog.
If the PSU Library does not hold the article online, you can request it through Interlibrary Loan & Article Delivery.