A sua pesquisa - communities formalization based extension ((array string) or (((array using) or (array format)))) - não corresponde a nenhum registo.

Talvez deva tentar algumas variações de ortografia:
communities formalization » communities organization, communities organizations, communities urbanization
formalization based » normalization based, formulation based, localization based
based extension » based extraction
array string » array strong, arrays strings, array sharing
array using » arrays using

Pode obter mais resultados ajustando a pesquisa.