Perhaps you should try some spelling variations:
efficient programming » efficient programmable, efficient program, efficient programs
applications concepts » applications context, applications content, applications cancer
effect programming » effects programming, defect programming, effective programming
concepts critiques » concepts critical

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "irrigation ((efficient programming) OR (effect programming)) applications concepts critiques~".
• Adding a wildcard symbol may retrieve word variants: irrigation ((efficient programming) OR (effect programming)) applications concepts critiques*.