Perhaps you should try some spelling variations:
irrigation scheme » irrigation systems
bans irrigation » tank irrigation, canal irrigation, basin irrigation
banking series » banking services, making series, banking service
data banking » data taking, data linking, data asking
export bans » export base, export bias, import bans
import data » import duty

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( export bans irrigation scheme. ) or ( import data banking series. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( export bans irrigation scheme. ) OR ( import data banking series. )).
• Adding a wildcard symbol may retrieve word variants: (( export bans irrigation scheme. ) or ( import data banking series. ))*.