Perhaps you should try some spelling variations:
integration schemes » integration schengen, irrigation schemes, integration regimes
irrigation system » irrigation systems, irrigation water, irrigation scheme
chain irrigation » grain irrigation, change irrigation, basin irrigation
supply fare » supply case, supply figure, supply curve
supply farm » supply from, support farm

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

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