Perhaps you should try some spelling variations:
"cost of _ healthy dies" » "cost of _ healthy diets", "cost of _ healthy ties", "cost of _ healthy aims"
"cost of _ health dies" » "cost of _ health die", "cost of _ health does", "cost of _ health bodies"
"cost of _ health diet" » "cost of _ healthy diets", "cost of _ health dietary", "cost of _ healthful diet"
"cost of _ healthy adults" » "cost of _ healthy adult"

Try widening your search to All Fields.

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: (((((("cost of _ healthy dies") OR ("cost of _ healthy diet"))) OR ((("cost of _ health dies") OR ("cost of _ health diet"))))) OR ("cost of _ healthy adults")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"cost of _ healthy dies\") or (\"cost of _ healthy diet\"))) or (((\"cost of _ health dies\") OR (\"cost of _ health diet\"))))) or (\"cost of _ healthy adults\"))".
• Removing quotes may allow a broader search: (((((( cost of _ healthy dies ) or ( cost of _ healthy diet ))) or ((( cost of _ health dies ) OR ( cost of _ health diet ))))) or ( cost of _ healthy adults )).
• Adding a wildcard symbol may retrieve word variants: (((((("cost of _ healthy dies") or ("cost of _ healthy diet"))) or ((("cost of _ health dies") OR ("cost of _ health diet"))))) or ("cost of _ healthy adults"))*.