Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
irrigation scheme » irrigation systems
can integration » chain integration, von integration, urban integration
supply crowd » supply growth, supply cost, supply from
supply crop » supply from, supply europe, supply curve
supply can » supply chain, supply case, supply chai

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) OR (supply crowd)) irrigation scheme. ) or ( supply can integration efforts. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((supply crop) OR (supply crowd)) irrigation scheme. ) OR ( supply can integration efforts. ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((supply crop) OR (supply crowd)) irrigation scheme. ) or ( supply can integration efforts. ))*".