Perhaps you should try some spelling variations:
integration theory » integration through, information theory, innovation theory
irrigation system » irrigation systems, irrigation water, irrigation scheme
well irrigation » delta irrigation, field irrigation, level irrigation
supply crowd » supply growth, supply cost, supply from
supply grid » supply great, support grid
supply well » supply west

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((supply grid) OR (supply crowd)) integration theory. ) or ( supply well irrigation system. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((supply grid) OR (supply crowd)) integration theory. ) OR ( supply well irrigation system. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((supply grid) OR (supply crowd)) integration theory. ) or ( supply well irrigation system. ))".
• Adding a wildcard symbol may retrieve word variants: (( ((supply grid) OR (supply crowd)) integration theory. ) or ( supply well irrigation system. ))*.