You may search for messages from your folders using different search criteria.
Step 1: Enter text to the fields you want to add to your search criteria.
Step 2: Choose the message flag(s) to add to your search criteria.
Step 3: Choose the folder(s) from which to search for the messages.
Step 4: Click "Search".
If any messages matched your search criteria, then the subjects of these messages will be shown in the "Search Results" view.