Perhaps you should try some spelling variations:
"descriptions clauses" » "descriptions causes", "description causes", "descriptions uses"
"descriptions places" » "descriptions plate", "descriptions plus", "descriptions paper"
"descriptive clause" » "descriptive case", "descriptive claims", "descriptive feature"
"descriptions based" » "description based", "descriptors based", "descriptor based"

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