Perhaps you should try some spelling variations:
"journal of europe road space research" » "journal of europe road rice research", "journal of europe road care research", "journal of europe road trade research", "journal of european road space research", "journal of euro road space research"
"journal of european debt peace research" » "journal of european debt science research", "journal of european data peace research", "journal of european debt price research"

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: (("journal of european debt peace research") OR ("journal of europe road space research"))~.
• Removing quotes may allow a broader search: (( journal of european debt peace research ) or ( journal of europe road space research ))~.
• Adding a wildcard symbol may retrieve word variants: (("journal of european debt peace research") or ("journal of europe road space research"))*.