Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
irrigation schemes » irrigation scheme, irrigation systems
design integration » design interactions, designs integrating, asian integration
case irrigation » scale irrigation, use irrigation, change irrigation
supply design » supplies design, support design, supply decisions
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 irrigation schemes. ) OR ( supply design integration efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply case irrigation schemes. ) or ( supply design integration efforts. ))*.