Perhaps you should try some spelling variations:
integrated system » integrated systems, integrated state, integrity system
irrigation scheme » irrigation systems
grid irrigation » grain irrigation, drip irrigation, gray irrigation
supply through » supply throughout, support through
support grid » support agri, support grant, support group

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

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