Perhaps you should try some spelling variations:
"supply rfid integration theories." » "supply rfid integration theorems.", "supply rfid integrationstheorie 2.", "supply rfid integration theory.", "supply grid integration theories.", "supply und integration theories.", "supply unified integration theories."
"supply crowd integration social." » "supply crowd international social.", "supply grid integration social.", "supply beyond integration social.", "supply toward integration social.", "supply growth integration social.", "supply cost integration social.", "supply from integration social."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply rfid integration theories.") or ("supply crowd integration social."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply rfid integration theories.") OR ("supply crowd integration social.")).
• Removing quotes may allow a broader search: (( supply rfid integration theories. ) or ( supply crowd integration social. )).
• Adding a wildcard symbol may retrieve word variants: (("supply rfid integration theories.") or ("supply crowd integration social."))*.