Perhaps you should try some spelling variations:
"supply cost integration theories." » "supply cost integration theory.", "supply cost integration through.", "supply cost integration efforts.", "supply south integration theories.", "supply tool integration theories.", "supply can integration theories.", "supply costs integration theories."
"supply grid integration series." » "supply grid integrating services.", "supply grid integration schemes.", "supply grid integration social.", "supply trade integration series.", "supply _ integration series.", "supply data integration series.", "supply crowd integration series.", "support grid integration series."

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 cost integration theories.") or ("supply grid integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply cost integration theories.") OR ("supply grid integration series.")).
• Removing quotes may allow a broader search: (( supply cost integration theories. ) or ( supply grid integration series. )).
• Adding a wildcard symbol may retrieve word variants: (("supply cost integration theories.") or ("supply grid integration series."))*.