Final answer:
Andre can use the search tool to locate the document by name, content, or date in the file manager.
Step-by-step explanation:
To find a document using the file manager, Andre can use the search tool to locate it by name, content, or date. This is an efficient way to quickly find a specific document without having to navigate through all the folders. Additionally, Andre can restore old documents from the Recycle Bin in case the document was accidentally deleted. Clearing the cache, on the other hand, is not directly related to finding a lost document.