Always start with "Advanced Search"
It is a bit complex but it's worthwhile. You will have plenty of options to limit (focus) your results. Note the initial choices (1st picture below):
Enter your search terms. Do not be too specific - one or two words would suffice to begin with. (Have you watched "Finding search terms" video?)
Note that search results bring more options on the left side (2nd picture below) - "Available online", "Peer-reviewed", etc. Note the number of results - an indictator to broaden or narrow your search.
Libby gives you access to popular fiction and non-fiction ebooks & audio books. A PLS Library card is required in order to access Libby and check out titles, and title availability varies according to home PLS library branch. To get a free PLS Library card visit any public library in San Mateo County, or apply online: https://plsinfo.org/get-a-library-card/.
This collection includes thousands of hours of video, exclusive books, learning experiences, case studies, and certification prep for a wide variety of tech-, business-related topics including programming, web and mobile design, hardware, security, and more. This database also includes books a wide variety of topics beyond technology.
An online version of the Encyclopedia Britannica
The most authoritative source on the English language, with a focus on etymology and historical usage.