Perhaps you should try some spelling variations:
integration efforts » international efforts
school conservation » school construction, soil conservation, school operation
grid integration » trade integration, _ integration, data integration
supply school » supply shock, supply scheme, survey school
supply grid » supply crowd, support grid

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply grid integration efforts. ) or ( supply school conservation efforts. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply grid integration efforts. ) OR ( supply school conservation efforts. )).
• Adding a wildcard symbol may retrieve word variants: (( supply grid integration efforts. ) or ( supply school conservation efforts. ))*.