Perhaps you should try some spelling variations:
"elter regional resilience" » "elter operational resilience", "better regional resilience", "center regional resilience", "inter regional resilience"
"elter regional science" » "elter national science", "elter regional scale", "better regional science", "center regional science", "inter regional science"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"elter regional resilience\") OR (\"elter regional science\"))".
• Removing quotes may allow a broader search: (( elter regional resilience ) OR ( elter regional science )).
• Adding a wildcard symbol may retrieve word variants: (("elter regional resilience") OR ("elter regional science"))*.