We find proximity searches to be especially helpful, something like
"spirit old testament"~10
will find those three words within 10 words of each other.
Also limiting the search to just the title field
title:marriage AND divorce
You can also search by author
or for first and last name (you don't need the middle initial)
We use the solr search engine to index our journals. Here are some pages that discuss solr search engine syntax:
You might read those. They are not very long.