Perhaps you should try some spelling variations:
"supply crowd integration theories." » "supply crowd integration theorems.", "supply crowd integrationstheorie 2.", "supply crowd integration theory.", "supply grid integration theories.", "supply rfid integration theories.", "supply beyond integration theories.", "supply growth integration theories.", "supply cost integration theories.", "supply from integration theories."
"supply crop irrigation schemes." » "supply crop irrigation scheme.", "supply crop irrigation systems.", "supply drip irrigation schemes.", "supply scale irrigation schemes.", "supply canal irrigation schemes.", "supply from irrigation schemes.", "supply europe irrigation schemes.", "supply curve irrigation schemes."

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

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