也许你应该尝试一些拼写变化:
communication collocation » communication collaboration, communication collections, communication cooperation
collocation methods » collocation method, collection methods, allocation method
methods diffusion » networks diffusion, methods decision
gauge spaces » large space, safe spaces
tuple spaces » tuple space, type spaces, triple space
use spaces » phase spaces, whose spaces

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• Performing a fuzzy search may retrieve terms with similar spellings: communication collocation methods diffusion ((gauge spaces) or (((use spaces) or (tuple spaces))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication collocation methods diffusion ((gauge spaces) OR (((use spaces) OR (tuple spaces)))).
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