Perhaps you should try some spelling variations:
international efforts » international airports, international energy, international airport
grid international » third international, trade international, from international
integration power » integration some, integration process, international power
deep integration » data integration, _ integration, grid integration
support deep » support does, support them, support data
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 international efforts. ) or ( support deep integration power. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply grid international efforts. ) OR ( support deep integration power. )).
• Adding a wildcard symbol may retrieve word variants: (( supply grid international efforts. ) or ( support deep integration power. ))*.