Perhaps you should try some spelling variations:
"broadband conclusion for sustainable development" » "broadcast conclusion for sustainable development", "broadband combustion for sustainable development", "broadband commission for sustainable development"
"broadband connection for sustainable development" » "broadband connectivity for sustainable development", "broadband detection for sustainable development", "broadband communication for sustainable development"

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: "((\"broadband conclusion for sustainable development\") OR (\"broadband connection for sustainable development\"))".
• Removing quotes may allow a broader search: (( broadband conclusion for sustainable development ) OR ( broadband connection for sustainable development )).
• Adding a wildcard symbol may retrieve word variants: (("broadband conclusion for sustainable development") OR ("broadband connection for sustainable development"))*.