Perhaps you should try some spelling variations:
international efforts » international airports, international energy, international airport
irrigation schemes » irrigation scheme, irrigation systems
rfid international » third international, build international, ratio international
crop irrigation » drip irrigation, scale irrigation, canal irrigation
supply crop » supply crowd, supply from, supply europe
supply rfid » supply crowd

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

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