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

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: "((\"unter regional resilience\") OR (\"inter regional conference\"))".
• Removing quotes may allow a broader search: (( unter regional resilience ) OR ( inter regional conference )).
• Adding a wildcard symbol may retrieve word variants: (("unter regional resilience") OR ("inter regional conference"))*.