Perhaps you should try some spelling variations:
"an old raincoat won't ever let your do" » "an old raincoat don't ever let your do", "an old raincoat won't even let your do", "an old raincoat don't every let your do", "an old raincoat won't never let your do", "an old raincoat won't ever lost your do", "an old raincoat won't meyer let your do", "an old raincoat won't ever get your do", "an old raincoat won't ever let your dog", "an old raincoat won't ever let your docs", "an old raincoat won't ever let your door"
"an _ raincoat won't ever let your do" » "an _ raincoat don't ever let your do", "an _ raincoat won't even let your do", "an _ raincoat don't every let your do", "an _ raincoats won't ever let your do", "an _ raincoat won't never let your do", "an _ raincoat won't ever lost your do", "an _ raincoat won't meyer let your do", "an _ raincoat won't ever get your do", "an _ raincoat won't ever let your dog", "an _ raincoat won't ever let your docs", "an _ raincoat won't ever let your door"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"an old raincoat won't ever let your do\") OR (\"an _ raincoat won't ever let your do\"))".
• Removing quotes may allow a broader search: (( an old raincoat won't ever let your do ) OR ( an _ raincoat won't ever let your do )).
• Adding a wildcard symbol may retrieve word variants: (("an old raincoat won't ever let your do") OR ("an _ raincoat won't ever let your do"))*.