Perhaps you should try some spelling variations:
integration schemes » integration some, integration theories
irrigation schemes » irrigation scheme, irrigation systems
crowd integration » grid integration, trade integration, chain integration
from irrigation » farm irrigation, crop irrigation, furrow irrigation
supply crowd » supply growth, supply cost, supply how
supply from » support from

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 crowd integration schemes. ) OR ( supply from irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply crowd integration schemes. ) or ( supply from irrigation schemes. ))*.