Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration efforts
crowd integration » trade integration, chain integration, urban integration
grid integration » trade integration, _ integration, data integration
integration some » integration volume, integration power, integration south
supply crowd » supply growth, supply cost, supply how
supply grid » support grid

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply grid integration theories. ) OR ( supply crowd integration some. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply grid integration theories. ) or ( supply crowd integration some. ))*.