Perhaps you should try some spelling variations:
irrigation scheme » irrigation systems
canal irrigation » scale irrigation
banking series » banking services, making series, banking service
export canal » export channel, export bans, export cargo
late banking » state banking, water banking, large banking
import late » import rates, import data, import value

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: (( export canal irrigation scheme. ) OR ( import late banking series. ))~.
• Adding a wildcard symbol may retrieve word variants: (( export canal irrigation scheme. ) or ( import late banking series. ))*.