Perhaps you should try some spelling variations:
"supply firms integration efforts." » "supply firms international efforts.", "supply firms conservation efforts.", "supply fare integration efforts.", "supply fiscal integration efforts.", "supply farm integration efforts.", "supply reforms integration efforts.", "supply sides integration efforts."
"supply factor integration series." » "supply facto integration series.", "supply sector integration series.", "supply faculty integration series.", "supply factor integration theories.", "supply factor integrating services.", "supply factor integration schemes.", "supply factors integration series.", "supply water integration series."

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

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