When searching for information a great way to search for specific topics is to use the Library of Congress Subject Headings. Subject Headings are used by a huge selection of libraries/archives and databases. They are used to organise resources by topic and allow you to perform more precise searches, narrowing your results to relevant information. Simply use the Subject Headings as the keywords for your search.
Some examples for Italian Subject areas include:
- Reference books, Italian
- Songs, Italian
- Dialogues, Italian -- History and criticism
- Italian Literature
- Italians in literature
You can search the Library of Congress website for more Subject Headings based on your research topics.