Perhaps you should try some spelling variations:
"a fifty-minute series book" » "a fifty-minute bodies book", "a fifty-minute survey 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 period block" » "A Fifty-acute period block", "A Fifty-minute region block", "A Fifty-minute period black", "A Fifty-minute period clock", "A Fifty-minute period blood"

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 period block")).
• Removing quotes may allow a broader search: (( a fifty-minute series book ) or ( A Fifty-minute period block )).
• Adding a wildcard symbol may retrieve word variants: (("a fifty-minute series book") or ("A Fifty-minute period block"))*.