Perhaps you should try some spelling variations:
"a fifty-minute services book" » "a fifty-mining services book", "a fifty-route services book", "a fifty-minute prices book", "a fifty-minute service book", "a fifty-minute services look", "a fifty-minute services hooks", "_ fifty-minute services book", "a fifth-minute services book"
"a fifty-minute series book" » "a fifty-minute bodies book", "a fifty-minute survey book", "a fifty-minute series books", "a fifty-minute stories book", "a fifty-minute series block", "_ fifty-minute series book", "a fifth-minute series book"
"a fifty-minute series bones" » "a fifty-minute bodies bones", "a fifty-minute survey bones", "a fifty-minute series bounds", "a fifty-minute series books", "a fifty-minute series one", "_ fifty-minute series bones", "a fifth-minute series bones"
"a fifty-minute period bounds" » "a fifty-acute period bounds", "a fifty-minute per bounds", "a fifty-minute region bounds", "a fifty-minute periods bonds", "a fifty-minute period bouncers", "a fifty-minute period ground", "_ fifty-minute period bounds", "a fifth-minute period bounds"

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 services book"))) OR ((("a fifty-minute series bones") OR ("a fifty-minute period bounds"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"a fifty-minute series book\") OR (\"a fifty-minute services book\"))) or (((\"a fifty-minute series bones\") or (\"a fifty-minute period bounds\"))))*".
• Removing quotes may allow a broader search: (((( a fifty-minute series book ) OR ( a fifty-minute services book ))) or ((( a fifty-minute series bones ) or ( a fifty-minute period bounds ))))*.