Literature search mostly involves searching for relevant Journal and Conference papers to related to your work. The CSULB library provides a number of resources for this purpose.
OneSearch
https://www.csulb.edu/university-library
This is the easiest way to find a particular journal or an article (Journal or Conference) if you know the title of the article. Simply type in the search box and select Everything in the search criteria.
Engineering Databases
https://csulb.libguides.com/c.php?g=39103&p=249157
The library provides access to a number of databases that can be used to search for articles. The different databases provide access to different journals but usually you can start with Compendex and IEEE Explore before moving on to others that might provide exclusive access to particular set of Journals.