A subject search is different from a keyword search.
In a keyword search you can enter any words in the search box and it will look through all of the books trying to find these words anywhere in the catalog.
In a subject search, however, you only put the main idea of your topic in the search box. The computer looks at what subjects have been assigned to each book/video to try and match the topic you put in the search box.
To search for books and videos using subjects:
Don't put an entire sentence in the search box!
Don't put keywords with the word AND in between. That only works for keyword searches.
Subject Searches only use very specific words that have been assigned by librarians.
Ask for Help if you have problems!