החיפוש שביצעת - communication ((cohesion basics) OR (cohesion based)) dimensions from laser* - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
cohesion basics » compression basics, combustion basics, cognition basics
dimensions from » dimensions book
cohesion based » conversion based, collision based, corrosion based
from laser » from lake

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