Perhaps you should try some spelling variations:
"first grand specification document" » "first grand classification document", "first grand specification driven", "first grand specific document", "first grained specification document", "first graph specification document", "first graphs specification document", "first hand specification document", "first grade specification document", "first glance specification document"
"first rank specification document" » "first rank classification document", "first rank specification driven", "first rank specific document", "first task specification document", "first risk specification document", "first ranking specification document"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"first grand specification document\") OR (\"first rank specification document\"))".
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