Perhaps you should try some spelling variations:
london mathematical » non mathematical, common mathematical, motion mathematical
simple mathematical » finance mathematical
society lecturer » society culture, society nature
lecturer notes » lecture notes, lectures notes, lecture note
lecturer note » lecture note, lectures notes, lecture notes
notes series » notes queries, moses series, notes searle's

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 (simple mathematical)) society lecturer note series") OR ("((london mathematical) or (simple mathematical)) society lecturer notes series")).
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