Perhaps you should try some spelling variations:
information documentation » international documentation, information presentation, information representation
information documents » information agents, information requirements
objective functions » objective questions
functions dr » functions d, functions data, functions ddmf
dr livres » de livres, du livre

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((information documentation) OR (information documents)) objective functions dr livres~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((information documentation) OR (information documents)) objective functions dr livres".
• Adding a wildcard symbol may retrieve word variants: ((information documentation) OR (information documents)) objective functions dr livres*.