Search syntax allows you to search for more than one keyword.
In the search box above your messages, use the following commands to find what you're looking for:
has:attachment (or has:pdf, has:ppt, etc.)
Please do not use spaces between colon and the word you are searching for. You do not need to use commas between search criteria.
Example: subject:meeting notes has:attachment
Example: in:marketing presentation [this will show you results from your Marketing folder that have the term 'presentation']