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 fair lending services." » "supply fair nonlending services.", "supply fair planning services.", "supply fair banking services.", "supply bank lending services.", "supply fair trading services.", "supply peer lending services.", "supply farm lending services.", "supply chain lending services.", "supply water lending services."

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

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