Perhaps you should try some spelling variations:
"costly price" » "cost price", "costly peace", "monthly price"
"costs price" » "costs prices", "cost price", "cost prices"
"costa rice" » "costa rican", "costa ricas", "cost price"
"costa rica" » "costa rich", "costa rita"

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: (("costa rica") OR ((("costa rice") OR ((("costs price") OR ("costly price")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"costa rica\") or (((\"costa rice\") or (((\"costs price\") OR (\"costly price\"))))))".
• Removing quotes may allow a broader search: (( costa rica ) or ((( costa rice ) or ((( costs price ) OR ( costly price )))))).
• Adding a wildcard symbol may retrieve word variants: (("costa rica") or ((("costa rice") or ((("costs price") OR ("costly price"))))))*.