Perhaps you should try some spelling variations:
"support grid integration policies." » "support grid immigration policies.", "support grid international policies.", "support grid migration policies.", "support agri integration policies.", "support grant integration policies.", "support group integration policies."
"support aging sanitation services." » "support emerging sanitation services.", "support hygiene sanitation services.", "support guinea sanitation services.", "support making sanitation services.", "support using sanitation services.", "support going sanitation services."

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: (("support grid integration policies.") OR ("support aging sanitation services."))~.
• Removing quotes may allow a broader search: (( support grid integration policies. ) or ( support aging sanitation services. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support grid integration policies.") or ("support aging sanitation services."))*.