Perhaps you should try some spelling variations:
communication conversation » communication information, communication cohesion, communication communication
conversation centres » conversation center, convention centre, conversation peter
centres provision » contents provision, energy provision, care provision
basic linear » quasi linear

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 centres provision ((basic linear) OR (basic life))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication conversation centres provision ((basic linear) OR (basic life))".
• Adding a wildcard symbol may retrieve word variants: communication conversation centres provision ((basic linear) OR (basic life))*.