Perhaps you should try some spelling variations:
"journal of european debt survey research" » "journal of european debt further research", "journal of european debt surges research", "journal of european debt sources research", "journal of european leste survey research"
"journal of europe how climate research" » "journal of europe from climate research", "journal of europe cold climate 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 europe how climate research") OR ("journal of european debt survey research"))~.
• Removing quotes may allow a broader search: (( journal of europe how climate research ) or ( journal of european debt survey research ))~.
• Adding a wildcard symbol may retrieve word variants: (("journal of europe how climate research") or ("journal of european debt survey research"))*.