Perhaps you should try some spelling variations:
"johann christian buch" » "hermann christian buch" (Expand Search), "von christian buch" (Expand Search), "doring christian buch" (Expand Search)
"johann christian mauch" » "hermann christian mauch" (Expand Search), "von christian mauch" (Expand Search), "doring christian mauch" (Expand Search)
"hans christian buch" » "von christian buch" (Expand Search), "hermann christian buch" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("johann christian buch") OR ("hans christian buch"))) OR ("johann christian mauch"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"johann christian buch\") OR (\"hans christian buch\"))) OR (\"johann christian mauch\"))".
• Removing quotes may allow a broader search: (((( johann christian buch ) OR ( hans christian buch ))) OR ( johann christian mauch )).
• Adding a wildcard symbol may retrieve word variants: (((("johann christian buch") OR ("hans christian buch"))) OR ("johann christian mauch"))*.