Perhaps you should try some spelling variations:
"supply data integration theories." » "supply data integration theory.", "supply data integration through.", "supply data integration efforts.", "supply trade integration theories.", "supply _ integration theories.", "supply data integrity theories.", "supply water integration theories."
"supply farmer integrated services." » "supply farmer internet services.", "supply water integrated services.", "supply based integrated services.", "supply more integrated services.", "supply farm integrated services.", "supply market integrated 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 data integration theories.") OR ("supply farmer integrated services."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply data integration theories.\") OR (\"supply farmer integrated services.\"))".
• Removing quotes may allow a broader search: (( supply data integration theories. ) OR ( supply farmer integrated services. )).
• Adding a wildcard symbol may retrieve word variants: (("supply data integration theories.") OR ("supply farmer integrated services."))*.