Off-campus and on-campus/wifi access to most of the databases, ebooks, and journals licensed by the Library is restricted to UC San Diego students, faculty and staff.
Find journal articles on your topic. In some databases you'll find conference papers as well.
Use Get it at UC to locate the full text of articles, if the Library licenses it. Or find the print copy in the Library collections.
Find books, textbooks and journals on your topic in the UCSD Libraries' catalog, UC Library Search.
Include "textbook" as a keyword to find textbooks. Use Find Journal to search for journal titles. Use Get it at UC if you have a specific journal article citation. Locate books outside of UCSD to request (fastest if a book is held at another UC) or with Circuit (SD area).
Google can give you a start on your research, but using Google Scholar is smarter. You'll search only academic resources, and if you set your Scholar Preferences to "University of California, San Diego - Get it at UC" you'll be able to use Get it at UC link resolver to get to article PDFs when you're off campus as long as you have VPN switched on with 2-Step Secured - allthruucsd.