Sentence:  But if the Trial did not expose the special Nazi mania so deadly to Jews as well as to anyone upon whom it happened to light , neither did it warn very effectively against the ordinary anti-Semitism of which the Nazis made such effective use in Germany and wherever else they could <WSD>find</WSD> it . 
Meaning of the word marked with <WSD> tags:  come upon, as if by accident; meet with