Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
land information » fund information, und information, award information
more irrigation » border irrigation, large irrigation, micro irrigation
export more » export korea, export market, export import
supply land » supply ann, supply law, supply england

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( export more irrigation schemes. ) or ( supply land information theory. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( export more irrigation schemes. ) OR ( supply land information theory. )).
• Adding a wildcard symbol may retrieve word variants: (( export more irrigation schemes. ) or ( supply land information theory. ))*.