You can enter in:
- A title that you are looking for
- An author that you are looking for
- A reference number that you are looking for
- A combination of keywords that may appear in the title, the author's name or in the description.
The Anchor search will then return any results that match your query.

Use words you think will be in only the documents you want. Searching for "Teach Us to Pray" usually gives you fewer results than "Pray" and they'll be closer to what you want.