Perhaps you should try some spelling variations:
communication conversation » communication information, communication cohesion, communication communication
conversation three » conversation threads, conversation turns, conversations themes
dimensional coarse » dimensional case, dimensional sparse, dimensional morse
coarse spaces » case spaces, phase spaces, coarse scale

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication conversation three dimensional coarse spaces~.
• Adding a wildcard symbol may retrieve word variants: communication conversation three dimensional coarse spaces*.