Perhaps you should try some spelling variations:
"a fifty-minute sheriffs books" » "a fifty-minute sheriffs commons", "_ fifty-minute sheriffs books", "a fifth-minute sheriffs books"
"a fifty-minute series book" » "a fifty-minute bodies book", "a fifty-minute period book", "a fifty-minute series books", "a fifty-minute services book", "a fifty-minute series block", "_ fifty-minute series book", "a fifth-minute series book"
"a fifty-minute survey book" » "a fifty-site survey book", "_ fifty-minute survey book", "a fifth-minute survey book"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a fifty-minute series book") OR ("a fifty-minute survey book"))) OR ("a fifty-minute sheriffs books")).
• Removing quotes may allow a broader search: (((( a fifty-minute series book ) or ( a fifty-minute survey book ))) or ( a fifty-minute sheriffs books )).
• Adding a wildcard symbol may retrieve word variants: (((("a fifty-minute series book") or ("a fifty-minute survey book"))) or ("a fifty-minute sheriffs books"))*.