Where you should search depends upon your topic.
You'll be most successful if you search in a subject database that covers your topic.
For example, when searching for education journal articles, ERIC and Teacher Reference Center would be excellent choices.
Looking for journals with full text? Start with Education Full Text or Professional Development Collection.
Image Source: Grafikę Stworzył. Compass. CC BY-SA 3.0. Wikimedia Commons.
Primo is a discovery search tool that you can use to begin your research or to find additional resources.
Primo does not search everything the library has access to; it should not be used exclusively. It can, however, be a valuable additional resource.