Perhaps you should try some spelling variations:
"comparative management practice history" » "compensation management practice history", "comparative management practices history", "comparative management france history", "comparative management practice theory", "comparative management justice history"
"competitive procurement ap history" » "competitive procurement a history", "competitive procurement law history", "competitive procurement act history", "competitive procurement hop history", "competitive procurement 2 history", "competitive procurement 1 history"

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: (("comparative management practice history") OR ("competitive procurement ap history"))~.
• Removing quotes may allow a broader search: (( comparative management practice history ) or ( competitive procurement ap history ))~.
• Adding a wildcard symbol may retrieve word variants: (("comparative management practice history") or ("competitive procurement ap history"))*.