Perhaps you should try some spelling variations:
"retail businesses case" » "retail business case", "rural businesses case", "small businesses case", "retail business cases", "retail businesses a", "retail businesses tap"
"basic business case" » "big business case", "mail business case", "based businesses case", "basic business cycle", "basic business climate"
"gas business case" » "gas business cycle", "gas business climate", "a business case", "mail business case", "_ business case"

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 case") OR ("gas business case"))) OR ("retail businesses case"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"basic business case\") OR (\"gas business case\"))) OR (\"retail businesses case\"))".
• Removing quotes may allow a broader search: (((( basic business case ) OR ( gas business case ))) OR ( retail businesses case )).
• Adding a wildcard symbol may retrieve word variants: (((("basic business case") OR ("gas business case"))) OR ("retail businesses case"))*.