Potser podríeu intentar variants ortogràfiques:
communication education » community education, communication communication, communication information
based extensions » based extension, base extension, brand extensions
education based » reduction based, education bicssc, education brazil
problems linear » problem linear, problems nonlinear
problems convex » problem convex, problems context, problems nonconvex

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• Executant una cerca difusa por obtener resultaste amo pararles similares: communication education based extensions ((problems linear) or (problems convex))~.
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