Talvez debería tentar con algunhas variantes ortográficas:
communication communications » communication communication, communication communicating, communications communication
based dimension » based dispersion, basic dimensions, based diffusion
based extension » based extraction
pvs theorem » pass theorem, types theorem, axis theorem

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• Performing a fuzzy search may retrieve terms with similar spellings: communication communications ((based dimension) or (based extension)) pvs theorem~.
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