Perhaps you should try some spelling variations:
"descriptions places" » "descriptions plate", "descriptions plus", "descriptions paper"
"descriptive clause" » "descriptive case", "descriptive claims", "descriptions clauses"
"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 places") OR ("description based")))).
• Removing quotes may allow a broader search: (( descriptive clause ) or ((( descriptions places ) or ( description based )))).
• Adding a wildcard symbol may retrieve word variants: (("descriptive clause") or ((("descriptions places") or ("description based"))))*.