החיפוש שביצעת - ((communication information) or (communication education)) quantity dimensional databases invited - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
communication information » communication international
communication education » community education, communication communication
dimensional databases » dimensional datasets, multidimensional databases, dimensional data
quantity dimensional » quality dimensions, quality dimension, equation dimensional
databases invited » databases united, databases induced, datasets invited

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