Perhaps you should try some spelling variations:
irrigation scheme » irrigation systems
sales irrigation » scale irrigation, saline irrigation, water irrigation
export sales » export shares, export share, export base
improve care » improving care, improve farmer, improve early
banks serve » banks reserve, banks were, bank service
care banks » large banks, market banks

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( export sales irrigation scheme. ) or ( improve care banks serve. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( export sales irrigation scheme. ) OR ( improve care banks serve. )).
• Adding a wildcard symbol may retrieve word variants: (( export sales irrigation scheme. ) or ( improve care banks serve. ))*.