Perhaps you should try some spelling variations:
approximation bibliography » applications bibliography, optimization bibliography
information bibliography » notation bibliography, introduction bibliography, equation bibliography
reformations biography » reformation biography, relations biography, recommendations biography
many reformations » _ reformations, many generations, many revolutions
biography series » biography pericles, biography sources, biography sermons

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( many reformations biography series ) OR ( early ((information bibliography) OR (approximation bibliography)) sources )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( many reformations biography series ) or ( early ((information bibliography) OR (approximation bibliography)) sources ))".
• Adding a wildcard symbol may retrieve word variants: (( many reformations biography series ) or ( early ((information bibliography) OR (approximation bibliography)) sources ))*.