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 count integrated services." » "supply count internet services.", "supply country integrated services.", "supply count integrating services.", "supply china integrated services.", "supply cost integrated services.", "supply costs integrated services.", "supply cote integrated services."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply count integrated services.\") OR (\"supply trade integration theories.\"))~".
• Removing quotes may allow a broader search: (( supply count integrated services. ) OR ( supply trade integration theories. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply count integrated services.") OR ("supply trade integration theories."))*.