Perhaps you should try some spelling variations:
"basic business books" » "bass business books", "asia business books", "based business books", "basic business book", "basic business handbooks", "basic business yearbooks"
"basic business costs" » "bass business costs", "asia business costs", "based business costs", "basic business cases", "basic business customs", "basic business centers"
"mail business case" » "small business case", "retail business case", "small businesses case", "mail business cycle", "mail business climate"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("basic business books") or ((("basic business costs") or ("mail business case"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("basic business books") OR ((("basic business costs") OR ("mail business case")))).
• Removing quotes may allow a broader search: (( basic business books ) or ((( basic business costs ) or ( mail business case )))).
• Adding a wildcard symbol may retrieve word variants: (("basic business books") or ((("basic business costs") or ("mail business case"))))*.