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

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