Perhaps you should try some spelling variations:
london mathematical » common mathematical, motion mathematical, action mathematical
society lectures » society lecturer, social lectures, society cultures
society lecture » society lecturer, society culture, society nature
notes searle's » notes sales
lectures now » lectures notes, lectures _, lectures 1
notes series » note series, notes queries, moses series
now series » new series, flow series, law series

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("((london mathematical) or (non mathematical)) society lectures now series") OR ("((london mathematical) or (non mathematical)) society lecture ((notes series) or (notes searle's))")).
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