Perhaps you should try some spelling variations:
international efforts » international airports, international energy, international airport
grid international » 3rd international, third international, build international
migration process » registration process
de migration » die migration, de migrations, re migration
supply grid » supply crowd, supply great, support grid
support de » support _, support a, support 4

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 international efforts. ) OR ( support de migration process. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply grid international efforts. ) or ( support de migration process. ))*.