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Informit is an Australian product and a good source of Australian material. It has subject strengths in health, social sciences, education, and Indigenous studies. However, many of its databases are quite small, and many are index-only, which means they don't contain the full-text of the items. As with other databases and platforms, you can use the Find it - CSU links to search for the full item.
The default should be to the Advanced Search screen.
The default is to searching Anywhere, use the drop-down menu to search in a specific field.