Perhaps you should try some spelling variations:
irrigation system » irrigation systems, irrigation water
irrigation scheme » irrigation systems
spate irrigation » scale irrigation, water irrigation, surge irrigation
trade irrigation » pradesh irrigation, scale irrigation, grain irrigation
supply spate » supply system, supply side, supply water
supply trade » supply case

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

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