You can find most articles using the Omni search. Enter some keywords, a citation, a DOI, an author - whatever you need.
The link to full text is in the full description when you click the title.
Omni finds articles as well as books, but sometimes a subject-specific database gives you more control of your search. These databases could be good starting points for research. They're very general in their coverage.
creative or creativity
"creative process"
creativity and science
creativity and education