Perhaps you should try some spelling variations:
interaction series » interactions series, interaction studies, interaction terms
irrigation scheme » irrigation systems
asset interaction » agent interaction, about interaction, cases interaction
crop irrigation » drip irrigation, scale irrigation, canal irrigation
supply asset » supply assets, supply aspect, supply aspects
supply crop » supply crowd, supply from, supply europe

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply crop irrigation scheme. ) OR ( supply asset interaction series. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply crop irrigation scheme. ) or ( supply asset interaction series. ))*.