Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
integration some » integration south, integration soziale, integration social
fare integration » trade integration, die integration
supply scale » supply case, supply scheme, supply social
supply fare » supply farm, supply case, supply figure

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply fare integration some. ) OR ( supply scale irrigation schemes. ))~".
• Adding a wildcard symbol may retrieve word variants: (( supply fare integration some. ) OR ( supply scale irrigation schemes. ))*.