Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
regression appliedar » regression appendix
documentation a » documentation _, documentation fast
a dimensions » _ dimensions, 2 dimensions, 3 dimensions

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 a dimensions ((regression applied) or (regression appliedar))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication documentation a dimensions ((regression applied) OR (regression appliedar)).
• Adding a wildcard symbol may retrieve word variants: communication documentation a dimensions ((regression applied) or (regression appliedar))*.