Perhaps you should try some spelling variations:
international efforts » international airports, international energy, international airport
integration efforts » conservation efforts
gvc international » etc international, tec international, apec international
support grid » support agri, support grant, support group
support gvc » support g, support agri

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

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