Talvez debería tentar con algunhas variantes ortográficas:
irrigation requirements » irrigation equipment, nutrition requirements
requirements design » requirements during, requirements driven
design dimensions » design decisions
arrays » ardays, array, arways
rays » days, ray, ways

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

• If you are trying to use Boolean operators, they must be ALL CAPS: irrigation requirements design dimensions ((((arrays OR array) OR ardays) from) OR (rays from))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "irrigation requirements design dimensions ((((arrays OR array) or ardays) from) or (rays from))~".
• Adding a wildcard symbol may retrieve word variants: irrigation requirements design dimensions ((((arrays OR array) or ardays) from) or (rays from))*.