Perhaps you should try some spelling variations:
integration schemes » integration schengen, irrigation schemes, integration regimes
irrigation scheme » irrigation systems
case integration » care integration, scale integration, based integration
spate irrigation » scale irrigation, water irrigation, surge irrigation
supply spate » supply system, supply side, supply water
supply case » supply cost, supply chain, supply curve

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