Perhaps you should try some spelling variations:
channels irrigation » change irrigation, canal irrigation, channels information
irrigation schemes » irrigation scheme, irrigation systems
integration some » integration south, integration soziale, integration social
supply channels » supply chains
supply grid » supply crowd, supply great, support grid

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

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