Talvez debería tentar con algunhas variantes ortográficas:
communication documentation » communication foundation, communication communication, communication conversation
documentation based » documentation fast, documentation a, documentation center
based dispersion » wave dispersion, gas dispersion, based discussion
dispersion a » dispersion _, dispersions _
a libre » _ libre, de libre

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• Performing a fuzzy search may retrieve terms with similar spellings: communication documentation based dispersion a libre~.
• Adding a wildcard symbol may retrieve word variants: communication documentation based dispersion a libre*.