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

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