Perhaps you should try some spelling variations:
"cost of a health does" » "cost of a health do", "cost of a health deep", "cost of a health der"
"cost of a health diet" » "cost of a healthy diet", "cost of a healthy diets", "cost of a health dietary"
"cost of a healthy adults" » "cost of _ healthy adults", "cost of a healthy adult"

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