Perhaps you should try some spelling variations:
integration schemes » integration schengen, irrigation schemes, integration regimes
basic conservation » basic considerations, marine conservation, basic constructions
crowd integration » grid integration, rfid integration, beyond integration
supply crowd » supply growth, supply cost, supply from
export basic » export basis, export base, export bases

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 crowd integration schemes. ) OR ( export basic conservation efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply crowd integration schemes. ) or ( export basic conservation efforts. ))*.