Talvez debería tentar con algunhas variantes ortográficas:
information requirements » nutrition requirements, irrigation requirements, information environments
information agents » information age, information access, information about
revision answers » decisions answers, revisited answers, radiation answers
first revision » first division, first session, first edition
answers steven » abusers steven

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

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