Perhaps you should try some spelling variations:
communication cohesion » communication collections, communication cost, communication apprehension
communication control » communication concepts, communication culture, communication channel
dimensional databases » dimensional datasets, multidimensional databases, dimensional data
laser dimensional » lower dimensional, large dimensional, laser directional
databases user » database user, databases under, databases using

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((communication cohesion) OR (communication control)) laser dimensional databases user~.
• Adding a wildcard symbol may retrieve word variants: ((communication cohesion) or (communication control)) laser dimensional databases user*.