Perhaps you should try some spelling variations:
"supply can integration theories." » "supply can integration theorems.", "supply can integrationstheorie 2.", "supply can integration theory.", "supply chain integration theories.", "supply von integration theories.", "supply urban integration theories.", "supply case integration theories.", "supply chai integration theories."
"supply flood irrigation system." » "supply flood irrigation systems.", "supply flood irrigation water.", "supply flood irrigation scheme.", "supply flood mitigation system.", "supply led irrigation system.", "supply farm irrigation system.", "supply food irrigation system.", "supply from irrigation system.", "supply crowd irrigation system."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply flood irrigation system.") OR ("supply can integration theories."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply flood irrigation system.\") OR (\"supply can integration theories.\"))".
• Removing quotes may allow a broader search: (( supply flood irrigation system. ) OR ( supply can integration theories. )).
• Adding a wildcard symbol may retrieve word variants: (("supply flood irrigation system.") OR ("supply can integration theories."))*.