Perhaps you should try some spelling variations:
"reform business costs" » "reforming business costs", "forum business costs", "term business costs", "reform business cases", "reform business customs", "reform business case"
"reform business hours" » "reforming business hours", "forum business hours", "term business hours"
"farm business books" » "farm business book", "farm business handbooks", "farm business yearbooks", "forum business books", "from business books", "term business books"

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: (((("reform business costs") OR ("reform business hours"))) OR ("farm business books"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"reform business costs\") OR (\"reform business hours\"))) or (\"farm business books\"))~".
• Removing quotes may allow a broader search: (((( reform business costs ) OR ( reform business hours ))) or ( farm business books ))~.
• Adding a wildcard symbol may retrieve word variants: (((("reform business costs") OR ("reform business hours"))) or ("farm business books"))*.