Perhaps you should try some spelling variations:
"national historical remarks" » "national historic remarks", "natural historical remarks", "national histories remarks"
"national history remark" » "natural history remark", "transnational history remark", "international history remark", "national history remarks", "national historic remarks", "national history read"

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: (("national historical remarks") OR ("national history remark")).
• Removing quotes may allow a broader search: (( national historical remarks ) or ( national history remark )).
• Adding a wildcard symbol may retrieve word variants: (("national historical remarks") or ("national history remark"))*.