Perhaps you should try some spelling variations:
communication conversation » communication information, communication cohesion, communication communication
conversation pattern » conversation patterns, conversation peter, concentration pattern
pattern erosion » pattern fusion, pattern motion, pattern regression
control flight » control rights, condition flight
control light » control right, control rights, control weight

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 pattern erosion ((control light) OR (control flight))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication conversation pattern erosion ((control light) OR (control flight))".
• Adding a wildcard symbol may retrieve word variants: communication conversation pattern erosion ((control light) OR (control flight))*.