החיפוש שביצעת - ((communication applications) or (communications connections)) metholodgy dimension case spaces - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
communication applications » communication education, education applications
communications connections » communication connection, communication collections, communication connecting
metholodgy dimension » methods dimension
dimension case » dimensional case, dimension based, dimension laser
case spaces » coarse spaces, phase spaces, scale spaces

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