Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
innovation theory » innovation through, motivation theory
crowd innovation » growth innovation, closed innovation, ground innovation
canal irrigation » scale irrigation
supply crowd » supply growth, supply cost, supply from
supply canal » supply canada, supply annual, supply china

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

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