Perhaps you should try some spelling variations:
information documents » information documentation, information agents, information requirements
documents finding » documents mining, documents printing, documents defining
definition file » definition fiber, definition de, definition from
definition case » definition causes, definition phase, definition scope

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 finding ((definition file) OR (definition case)) siberia~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "information documents finding ((definition file) OR (definition case)) siberia".
• Adding a wildcard symbol may retrieve word variants: information documents finding ((definition file) OR (definition case)) siberia*.