Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
documentation fast » documentation a, documentation _
fast dimension » first dimension, hat dimension, lost dimension
index robert » hinde robert, index robust, grinder robert
index driven » wind driven, index diet

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 fast dimension ((index robert) or (index driven))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication documentation fast dimension ((index robert) OR (index driven)).
• Adding a wildcard symbol may retrieve word variants: communication documentation fast dimension ((index robert) or (index driven))*.