Perhaps you should try some spelling variations:
communication conversation » communication information, communication communication, communication foundation
communication cohesion » communication collections, communication control, communication cost
based dimension » based dispersion, basic dimensions, based extension
dimension ief » dimension ii, dimension i, dimension iii
ief layers » ge layers, ice layers

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) OR (communication cohesion)) based dimension ief layers~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((communication conversation) OR (communication cohesion)) based dimension ief layers".
• Adding a wildcard symbol may retrieve word variants: ((communication conversation) OR (communication cohesion)) based dimension ief layers*.