Perhaps you should try some spelling variations:
"Supply data irrigation schemes." » "Supply data irrigation scheme.", "Supply canal irrigation schemes.", "Supply water irrigation schemes.", "Supply spate irrigation schemes."
"Supply data irrigation systems." » "Supply canal irrigation systems.", "Supply water irrigation systems.", "Supply spate irrigation systems.", "Supply data irrigation system."
supply data » supply water

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("Supply data irrigation schemes.") OR ("Supply data irrigation systems."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Supply data irrigation schemes.\") OR (\"Supply data irrigation systems.\"))".
• Removing quotes may allow a broader search: (( Supply data irrigation schemes. ) OR ( Supply data irrigation systems. )).
• Adding a wildcard symbol may retrieve word variants: (("Supply data irrigation schemes.") OR ("Supply data irrigation systems."))*.