Perhaps you should try some spelling variations:
"supply grid integration theories." » "supply grid integration theorems.", "supply grid integrationstheorie 2.", "supply grid integration theory.", "supply crowd integration theories.", "supply great integration theories.", "support grid integration theories."
"supply scale integration efforts." » "supply scale international efforts.", "supply scale conservation efforts.", "supply care integration efforts.", "supply soziale integration efforts.", "supply trade integration efforts.", "supply case integration efforts.", "supply scheme integration efforts.", "supply social integration efforts."

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

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