Perhaps you should try some spelling variations:
"descriptive plates" » "descriptive poem", "descriptive data"
"descriptions phase" » "descriptions plate", "descriptions places", "descriptions part"
"descriptions based" » "description based", "descriptors based", "descriptor based"
"descriptive based" » "description based", "descriptive basis", "descriptor based"
"descriptive case" » "descriptive clause", "descriptive phase", "description case"

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