Perhaps you should try some spelling variations:
"descriptions papers" » "descriptions paper", "descriptions papetri", "description paper"
"descriptions plate" » "descriptions places", "descriptions phase", "descriptions template"
"descriptions state" » "descriptions system", "descriptions some", "descriptions soil"
"descriptive phase" » "descriptive case", "descriptive plates", "descriptions phase"

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 plate") OR ("descriptions state"))) OR ("descriptions papers")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"descriptive phase\") or (((((\"descriptions plate\") OR (\"descriptions state\"))) or (\"descriptions papers\"))))".
• Removing quotes may allow a broader search: (( descriptive phase ) or ((((( descriptions plate ) OR ( descriptions state ))) or ( descriptions papers )))).
• Adding a wildcard symbol may retrieve word variants: (("descriptive phase") or ((((("descriptions plate") OR ("descriptions state"))) or ("descriptions papers"))))*.