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