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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("mail business costs") OR ("basic business case"))) OR ("gas business costs"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"mail business costs\") OR (\"basic business case\"))) OR (\"gas business costs\"))".
• Removing quotes may allow a broader search: (((( mail business costs ) OR ( basic business case ))) OR ( gas business costs )).
• Adding a wildcard symbol may retrieve word variants: (((("mail business costs") OR ("basic business case"))) OR ("gas business costs"))*.