Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
integration volume » integration von
data integration » data integrity
supply cote » supply costs, supply cost, supply cold
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 cote) OR (supply case)) irrigation schemes. ) OR ( supply data integration volume. ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((supply cote) OR (supply case)) irrigation schemes. ) or ( supply data integration volume. ))~".
• Adding a wildcard symbol may retrieve word variants: (( ((supply cote) OR (supply case)) irrigation schemes. ) or ( supply data integration volume. ))*.