החיפוש שביצעת - information preservation _ decision ((((data grouping) or (data guoqing))) or (a grouping)) - חזר ריק.
אולי כדאי לנסות איות אחר או כתיב מלא:
information preservation » information presentation, information representation, information generation
data grouping » data growing, data group, data wrapping
data guoqing » data getting, data coding
a grouping » _ grouping, a growing
information preservation » information presentation, information representation, information generation
data grouping » data growing, data group, data wrapping
data guoqing » data getting, data coding
a grouping » _ grouping, a growing
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