If so,why are they used this way? You can look at your examples as a shortened form of the negative 'anything'.
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MarxistIn some phrases,I found 'something' would be replaced of 'a thing',such as,'not feel a thing'(Forrest Gump),'amount to a thing'(Titanic) etc.Do these 'a thing' mean 'something'?If so,why are they used this way?You can look at your examples as a shortened form of the negative 'anything'.