Perhaps you should try some spelling variations:
information documents » information documentation, information agents, information requirements
data dimensional » data dimension, data dimensions, meta dimensional
documents data » documents a
nurses level » course level
causes leaf » causing leaf

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 data dimensional ((nurses level) or (causes leaf))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information documents data dimensional ((nurses level) OR (causes leaf)).
• Adding a wildcard symbol may retrieve word variants: information documents data dimensional ((nurses level) or (causes leaf))*.