Tip 1: Use the long view to review subject headings.
Tip 2: If a record says "networked resource" it is usually available online.
Tip 3: Always pay attention to the call numbers and note whether the material is shelved in the regular, oversized (+),or double oversized (++) sections.
Searching by Library of Congress (LC) Subject Headings in Cornell's Classic Catalog can be an efficient way of identifying materials in a specific area of study. If you've found relevant material in a keyword search, display the Long View of the record to see the LC subject headings for that record. Subject headings are hyperlinked, so clicking on one display a list of headings in alphabetical order. Clicking on a specific heading will display a list of books cataloged under that heading. If you know a heading, of course, you can choose the Search Type 'Subject' and enter a search directly.
Some useful headings for this subject are:
French language --Style
French language --Dialects
French language --Etymology
French language --Idioms
French language --Variation