Perhaps you should try some spelling variations:
irrigation requirements » irrigation equipment, nutrition requirements
information agents » information age, information access, information about
basic dimensioning » based dimensioning, basic dimensions, fast dimensioning
dimensioning rules » dimensioning problems, dimension roles, dimensioning self
rules online » files online, rules engine, games online

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((information agents) or (irrigation requirements)) basic dimensioning rules online~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((information agents) OR (irrigation requirements)) basic dimensioning rules online.
• Adding a wildcard symbol may retrieve word variants: ((information agents) or (irrigation requirements)) basic dimensioning rules online*.