Check the databases page on the Engineering guide for more resources including the "Related Databases" and "Related Subject Guides."
Use appropriate databases depending on your design. For instance if your design has medical or health dimensions to it use the appropriate database from Databases by Topic list (Health Science).
In our class example TRID (database for transportation) is important.
When you have tried all the appropriate databases from the library and still have not found the information you need, try Google Scholar - you may be able to unearth that nugget of information you need!
Watch this video to set your user preferances so you can connect to full-text at CSULB.