Perhaps you should try some spelling variations:
"descriptive clause" » "descriptive case", "descriptive claims", "descriptions clauses"
"descriptions plate" » "descriptions places", "descriptions state", "descriptions phase"
"description based" » "descriptor based", "description des"

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