Perhaps you should try some spelling variations:
irrigation system » irrigation systems, irrigation water, irrigation scheme
spate irrigation » scale irrigation, water irrigation, surge irrigation
sides banking » codes banking, prices banking, sides changing
supply sides » supply side
supply spate » supply system, supply side, supply water

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply sides banking (services. OR series.) ) or ( supply spate irrigation system. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply sides banking (services. OR series.) ) OR ( supply spate irrigation system. ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply sides banking (services. OR series.) ) or ( supply spate irrigation system. ))*".