Perhaps you should try some spelling variations:
information documents » information documentation, information agents, information requirements
presented function » presented education, projected functions, related function
function classes » functional classes, foundation classes, function analyses
classes cures » classes lectures, classes case, classes cross

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: ((information documents) OR (nutritional requirements)) presented function classes cures~.
• Adding a wildcard symbol may retrieve word variants: ((information documents) or (nutritional requirements)) presented function classes cures*.