Perhaps you should try some spelling variations:
communication control » communication concepts, communication culture, communication channel
communication cost » communication cross, communication case, communication concepts
data decision » a decision
based lieven » based live, based liver, based event
based level » based label

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((communication cost) OR (communication control)) data decision ((based lieven) or (based level))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((communication cost) OR (communication control)) data decision ((based lieven) OR (based level))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((communication cost) OR (communication control)) data decision ((based lieven) or (based level))*".