Perhaps you should try some spelling variations:
documents base » documents based, document base, documents bank
document based » documents based, document asia
documents case » documents based, documents clare, documents css
excision from » exclusion from, excitation from, decisions from
from steven » from seven, strom steven, from steel

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: information ((((documents base) OR (document based))) or (documents case)) excision from steven~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information ((((documents base) OR (document based))) OR (documents case)) excision from steven.
• The words AND, OR and NOT may confuse the search; try adding quotes: "information ((((documents base) OR (document based))) or (documents case)) excision from steven".
• Adding a wildcard symbol may retrieve word variants: information ((((documents base) OR (document based))) or (documents case)) excision from steven*.