Perhaps you should try some spelling variations:
"journal of european rail science research" » "journal of european bank science research", "journal of european road science research", "journal of european basic science research", "journal of european soil sciences research", "journal of european grade science research"
"journal of european debt impact research" » "journal of european net impact research", "journal of european direct impact research"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("journal of european debt impact research") or ("journal of european rail science research"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("journal of european debt impact research") OR ("journal of european rail science research")).
• Removing quotes may allow a broader search: (( journal of european debt impact research ) or ( journal of european rail science research )).
• Adding a wildcard symbol may retrieve word variants: (("journal of european debt impact research") or ("journal of european rail science research"))*.