Perhaps you should try some spelling variations:
integration theory » integration through, information theory, innovation theory
crowd integration » grid integration, rfid integration, beyond integration
case irrigation » scale irrigation, use irrigation, change irrigation
supply crowd » supply growth, supply cost, supply from
supply case » supply cost, supply chain, supply curve

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply crowd integration theory. ) or ( supply case irrigation (systems. or system.) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply crowd integration theory. ) OR ( supply case irrigation (systems. OR system.) )).
• Adding a wildcard symbol may retrieve word variants: (( supply crowd integration theory. ) or ( supply case irrigation (systems. or system.) ))*.