Perhaps you should try some spelling variations:
"inter regional conference" » "inter regional convergence", "inter national conference", "inter regional differences", "unter regional conference"
"elter regional resilience" » "elter regional science", "elter operational resilience", "better regional resilience", "center regional resilience", "after regional resilience"

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: (("elter regional resilience") OR ("inter regional conference"))*.
• Removing quotes may allow a broader search: (( elter regional resilience ) or ( inter regional conference ))*.