Perhaps you should try some spelling variations:
"support group integration efforts." » "support group international efforts.", "support group conservation efforts.", "support group interaction efforts.", "support group interactions efforts.", "support erp integration efforts.", "support grant integration efforts."
"support africa irrigation systems." » "support africa immigration systems.", "support syria irrigation systems.", "support drip irrigation systems.", "supporting africa irrigation systems.", "supply africa irrigation systems.", "support price irrigation systems.", "support africa irrigation system."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("support africa irrigation systems.") or ("support group integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support africa irrigation systems.") OR ("support group integration efforts."))*.
• Removing quotes may allow a broader search: (( support africa irrigation systems. ) or ( support group integration efforts. ))*.