Perhaps you should try some spelling variations:
"supply trade integration theories." » "supply trade integration theory.", "supply trade integration through.", "supply trade integration efforts.", "supply side integration theories.", "supply case integration theories."
"supply use integration series." » "supply use integrating services.", "supply use integration schemes.", "supply use integration social.", "supply asean integration series.", "supply deep integration series.", "supply fare integration series.", "supply case integration series.", "supply curve integration series.", "supply asset 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 use integration series.") or ("supply trade integration theories."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply use integration series.") OR ("supply trade integration theories."))*.
• Removing quotes may allow a broader search: (( supply use integration series. ) or ( supply trade integration theories. ))*.