Perhaps you should try some spelling variations:
irrigation scheme » irrigation systems
training services » planning services, banking services
curve irrigation » surge irrigation, large irrigation, crop irrigation
supply fare » supply farm, supply figure, supply based
supply case » supply cost, supply chain, supply costs

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 case)) training services. ) or ( supply curve irrigation scheme. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((supply fare) OR (supply case)) training services. ) OR ( supply curve irrigation scheme. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((supply fare) OR (supply case)) training services. ) or ( supply curve irrigation scheme. ))".
• Adding a wildcard symbol may retrieve word variants: (( ((supply fare) OR (supply case)) training services. ) or ( supply curve irrigation scheme. ))*.