Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
documentation binary » documentation library, documentation summary, documentation canada
binary decision » finance decision
decision audit » decision aiding, decision aid, decision aids

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication documentation binary decision audit (libris or libros)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication documentation binary decision audit (libris OR libros).
• Adding a wildcard symbol may retrieve word variants: communication documentation binary decision audit (libris or libros)*.