For a more precise search, and to exclude journal and newspaper articles, use the catalogue. Start at the library home page, click on the tab labelled "Books and More", then on "More search options".
The catalogue will display:
A simple way to start your search is to enter a word or phrase for your topic. Leave the dropdown menu at "Keyword (relevance ranked)"
When results display, click the title of an item to view its full entry, including location information, e.g. a call number or a link to online.
To make your search more precise, look below the location information for the subject heading(s) assigned to that book. Click on any subject heading to find more books on that topic.