Perhaps you should try some spelling variations:
"spanish case indices" » "spanish based indices", "spanish morse indices", "spanish cycle indices"
"spanish case indies" » "spanish case bodies", "spanish case findings", "spanish case studies"
"spanish case index" » "spanish cases index"

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: (((("spanish case indies") OR ("spanish case indices"))) OR ("spanish case index")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"spanish case indies\") OR (\"spanish case indices\"))) or (\"spanish case index\"))".
• Removing quotes may allow a broader search: (((( spanish case indies ) OR ( spanish case indices ))) or ( spanish case index )).
• Adding a wildcard symbol may retrieve word variants: (((("spanish case indies") OR ("spanish case indices"))) or ("spanish case index"))*.