Perhaps you should try some spelling variations:
"a fifty-minute stories about" » "a fifty-minute bodies about", "a fifty-minute story about", "_ fifty-minute stories about", "a fifth-minute stories about"
"A Fifty-minute studies book" » "A Fifty-mite studies book", "A Fifty-site studies book", "A Fifty-acute studies book", "A Fifty-minute studies b"
"a fifty-minute series book" » "a fifty-minute bodies book", "a fifty-minute period book", "a fifty-minute prices book", "a fifty-minute services book", "a fifty-minute series block", "a fifty-minute stories book", "_ fifty-minute series book", "a fifth-minute series book"
"a fifty-minute series books" » "a fifty-minute bodies books", "a fifty-minute period books", "a fifty-minute prices books", "a fifty-minute series bones", "a fifty-minute server books", "a fifty-minute sheriffs books", "a fifty-minute services books", "a fifty-minute series blocks", "a fifty-minute stories books", "_ fifty-minute series books", "a fifth-minute series books"
"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 studies book") OR ("a fifty-minute stories about"))))) OR ("a fifty-minute survey book"))) OR ("a fifty-minute series books")).
• Removing quotes may allow a broader search: (((((( a fifty-minute series book ) or ((( A Fifty-minute studies book ) or ( a fifty-minute stories about ))))) or ( a fifty-minute survey book ))) or ( a fifty-minute series books )).
• Adding a wildcard symbol may retrieve word variants: (((((("a fifty-minute series book") or ((("A Fifty-minute studies book") or ("a fifty-minute stories about"))))) or ("a fifty-minute survey book"))) or ("a fifty-minute series books"))*.