Perhaps you should try some spelling variations:
"communicating requirements resources history" » "communicating measurement resources history", "conflicting requirements resources history", "communication equipment resources history", "communicating requirements measures history", "communicating requirements references history", "communicating required resources history", "communicating requirements resources sector"
"comparative management structures study" » "compensation management structures study", "comparative management strategies study", "comparative management studies study", "comparative management structures story", "comparative management structures sought", "comparative management structures strict"

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 structures study") OR ("communicating requirements resources history"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"comparative management structures study\") OR (\"communicating requirements resources history\"))".
• Removing quotes may allow a broader search: (( comparative management structures study ) OR ( communicating requirements resources history )).
• Adding a wildcard symbol may retrieve word variants: (("comparative management structures study") OR ("communicating requirements resources history"))*.