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 side integration scheme." » "supply side integration schemes.", "supply side integration some.", "supply side irrigation scheme.", "supply trade integration scheme.", "supply asian integration scheme.", "supply grid integration scheme."

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

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