Perhaps you should try some spelling variations:
irrigation scheme » irrigation systems
canal irrigation » scale irrigation
data integration » data integrity
integration some » integration south, integration soziale, integration social
supply canal » supply canada, supply annual, supply china
support data » support a, support de

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

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