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 social irrigation system." » "supply local irrigation system.", "supply scale irrigation system.", "supply social mitigation system.", "supply social irrigation systems.", "supply social irrigation water.", "supply social irrigation scheme."

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 social irrigation system."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply data integration theories.") OR ("supply social irrigation system."))*.
• Removing quotes may allow a broader search: (( supply data integration theories. ) or ( supply social irrigation system. ))*.