Perhaps you should try some spelling variations:
conflicting requirements » containing requirements, communicating requirements, cooling requirements
comparative management » compensation management
requirements basics » requirements basic, requirements based, requirements design
management classes » management cases, management classic, management case
classes historical » causes historical, states historical, camps historical
basics history » basic history, fabrics history, banks history

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( comparative management classes historical ) or ( conflicting requirements basics history ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( comparative management classes historical ) OR ( conflicting requirements basics history )).
• Adding a wildcard symbol may retrieve word variants: (( comparative management classes historical ) or ( conflicting requirements basics history ))*.