Perhaps you should try some spelling variations:
matiere d'irrigation » water irrigation, matiere d'evaluation
d'irrigation scheme » irrigation schemes
export matiere » export matter, export maize
data banking » data taking, data linking, data asking
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 matiere d'irrigation scheme. ) or ( import data banking services. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( export matiere d'irrigation scheme. ) OR ( import data banking services. )).
• Adding a wildcard symbol may retrieve word variants: (( export matiere d'irrigation scheme. ) or ( import data banking services. ))*.