Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
integration volume » integration policy
grid integration » trade integration, _ integration, data integration
supply crowd » supply growth, supply cost
supply grid » support grid
supply how » supply shock

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: (( supply grid integration volume. ) OR ( ((supply crowd) OR (supply how)) integration efforts. ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply grid integration volume. ) or ( ((supply crowd) OR (supply how)) integration efforts. ))~".
• Adding a wildcard symbol may retrieve word variants: (( supply grid integration volume. ) or ( ((supply crowd) OR (supply how)) integration efforts. ))*.