Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation image » propagation damage, propagation imaging, propagation impact
image extensions » simple extensions, time extensions, damage extension
entropy linear » entropy nonlinear, entrees linear, entropy life
entropy ideal » entropy model

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• Performing a fuzzy search may retrieve terms with similar spellings: information propagation image extensions ((entropy linear) or (entropy ideal))~.
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