Search journals and magazines via HH Finna. Type the name of the journal or ISSN.
If you want to check if Haaga-Helia has access to an article, you can use HH Finna's International e-materials search. Put the article title in quotation marks, for example "Big Data and consumer behavior : imminent opportunities".
Google Scholar is a search engine specialised in finding research articles. Some of library's electronic resources can be searched with Google Scholar. In addition, you'll be able to search for Open Access materials.