Perhaps you should try some spelling variations:
"a fifty-minute period block" » "a fifty-acute period block", "a fifty-minute per block", "a fifty-minute region block", "a fifty-minute period black", "a fifty-minute period clock", "a fifty-minute period book", "_ fifty-minute period block"
"a fifty-minute period blood" » "a fifty-acute period blood", "a fifty-minute per blood", "a fifty-minute region blood", "a fifty-minute period book", "a fifty-minute period food", "a fifty-minute serious blood", "_ fifty-minute period blood"
"a fifty-minute series one" » "a fifty-minute survey one", "a fifty-minute series ode", "a fifty-minute services one", "a fifty-minute series bones", "_ fifty-minute series one"
"a fifty-minute series bounds" » "a fifty-minute survey bounds", "a fifty-minute series 11bounds", "a fifty-minute series wound", "a fifty-minute peres bounds", "_ fifty-minute series bounds"
"a fifty-minute bodies bounds" » "a fifty-finite bodies bounds", "a fifty-minute books bounds", "a fifty-minute bodies bounded", "a fifty-minute codes bounds", "a fifty-minute bodies found", "_ fifty-minute bodies bounds"
"a fifth-minute bodies bounds" » "a fifth-finite bodies bounds", "a fifth-minute books bounds", "a fifth-minute bodies bounded", "a fifth-minute codes bounds", "a fifth-minute bodies found", "_ fifth-minute bodies 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 period block") OR ("a fifty-minute period blood"))) OR ((("a fifty-minute series one") OR ((("a fifty-minute series bounds") OR ((("a fifty-minute bodies bounds") OR ("a fifth-minute bodies bounds")))))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"a fifty-minute period block\") OR (\"a fifty-minute period blood\"))) or (((\"a fifty-minute series one\") or (((\"a fifty-minute series bounds\") or (((\"a fifty-minute bodies bounds\") or (\"a fifth-minute bodies bounds\"))))))))".
• Removing quotes may allow a broader search: (((( a fifty-minute period block ) OR ( a fifty-minute period blood ))) or ((( a fifty-minute series one ) or ((( a fifty-minute series bounds ) or ((( a fifty-minute bodies bounds ) or ( a fifth-minute bodies bounds )))))))).
• Adding a wildcard symbol may retrieve word variants: (((("a fifty-minute period block") OR ("a fifty-minute period blood"))) or ((("a fifty-minute series one") or ((("a fifty-minute series bounds") or ((("a fifty-minute bodies bounds") or ("a fifth-minute bodies bounds"))))))))*.