Hi
It's not clear what information you require as your question is very wide. You may need to break it down in order for assistance.
i.e Courses info concerning machines or floor types etc.,
cleaning products generally or for specific cleaning problems you may be experiencing or Health & safety in what area.
Might I suggest as a starting point you might want to check for H&S info via your local council H&S executive or business link on blondon.co.uk or hse.gov.uk.
Floor types not maybe NCCA, Prochem hard floors or carpet cleaning, IICR etc.
Cleaning products you may want to browse through the host pages at express cleaning supplies to get some idea on what you may need.
Hope this helps