Perhaps you should try some spelling variations:
"supply functions international efforts." » "supply nations international efforts.", "supply action international efforts.", "supply relations international efforts.", "supply functions international airports.", "supply functions international energy.", "supply functions international airport.", "supply conditions international efforts."
"supply function international studies." » "supply action international studies.", "supply education international studies.", "supply taxation international studies.", "supply function international standards.", "supply function international standard."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply functions international efforts.") or ("supply function international studies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply functions international efforts.") OR ("supply function international studies.")).
• Removing quotes may allow a broader search: (( supply functions international efforts. ) or ( supply function international studies. )).
• Adding a wildcard symbol may retrieve word variants: (("supply functions international efforts.") or ("supply function international studies."))*.