Currently, Layar utilizes keywords and Boolean search parameters to capture documents. Files can be retrieved if the keywords exist in the title, metadata, or (most impressively) within a section of the document.
Learn more about how to effectively use Boolean operators in search.
Here's how to use your Layar search:
Type your query in the Search bar at the top of your Layar home screen.
Choose which data you would like to pull answers from - this can be done by selecting what sources you would like to use from the drop down menu to the right of the Search bar.
Layar will populate sources in the order that are most relevant to your search query.