Truncation: when using keywords, use the root form of the word with an asterisk at the end. This retrieves material with the term and spelling variations.
Combine keywords using boolean operators AND, OR, NOT, to hone your search.
CBBcat Example: Brazil* AND music* AND (popular OR indie OR folk)
OneSearch Example: Brazil* AND music* AND (popular OR indie OR folk)
Use linked subject headings in the catalog record to navigate to relevant material. See examples below.