Situation 1: you already have a key theme and a few key words as related to a relatively specific topic in mind
Consider Path A: Use the e-library search engine to search for academic articles
Situation 2: you have some preferred business subjects and/or some preferred business subjects' topic areas in mind
Consider Path B: Use the e-library to access a few major academic journal publisers to browse through a few chosen academic journals quickly with download of articles.
The process is described in the following diagram:
After you have accumulated some of the academic articles from the e-library, try to browse through the abstracts of these articles and then develop a more focused view on your proposal topic. At this, point, you should try to study some of the more "relevant" articles in details and conduct a more focused e-library search to gather a few more relevant articles to study.
It is generally the case for busy students that academic articles older than 6 years are unlikely to be useful for literature review purpose. For sophisticated and serious ressearchers, liteature review often cover articles published over the last 20 years.