Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
documentation fast » documentation a, documentation _
fast decision » fat decision, first decision, coast decision
ulf wave » ulf waves, ulf ware, elf waves
elf wave » elf waves, ulf waves, half wave

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 decision ((ulf wave) OR (elf wave))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication documentation fast decision ((ulf wave) OR (elf wave))".
• Adding a wildcard symbol may retrieve word variants: communication documentation fast decision ((ulf wave) OR (elf wave))*.