Perhaps you should try some spelling variations:
"descriptive clause" » "descriptive case", "descriptive claims", "descriptions clauses"
"descriptive plates" » "descriptive poem", "descriptive data"
"descriptions plate" » "descriptions places", "descriptions state", "descriptions phase"

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: (((("descriptive clause") OR ("descriptive plates"))) OR ("descriptions plate")).
• Removing quotes may allow a broader search: (((( descriptive clause ) or ( descriptive plates ))) or ( descriptions plate )).
• Adding a wildcard symbol may retrieve word variants: (((("descriptive clause") or ("descriptive plates"))) or ("descriptions plate"))*.