Papers offers several powerful ways to search your library of content. You can search directly for a title or author, but you can also get more complicated than that.
By clicking on the magnifying glass next to the search field, you'll get the options to include or exclude certain words from your search and even specific exactly what you're looking for by having the app search through specific metadata in your library such as author or journal - or, alternatively, to exclude them.
For instance, using our in app search you can specific that you're looking for an article with the word "elephant" and the author "Wesley"; as you type, you'll notice your terms populating in more search friendly terms in the search field above:
Once you've entered in all your keywords, click back into the search text field, hit "enter" and your results will populate:
For more advanced searching tips, please see our article on Advanced Searching in Papers.