Perhaps you should try some spelling variations:
"german historical institutes moscow" » "germans historical institutes moscow" (Expand Search), "german historical instituts moscow" (Expand Search), "german historical institute moscow" (Expand Search), "german historical institut moscow" (Expand Search)
"gehrmann historical institutes moscow" » "gehrmann historical instituts moscow" (Expand Search), "gehrmann historical institute moscow" (Expand Search), "gehrmann historical institut moscow" (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: (("german historical institutes moscow") OR ("gehrmann historical institutes moscow"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"german historical institutes moscow\") OR (\"gehrmann historical institutes moscow\"))".
• Removing quotes may allow a broader search: (( german historical institutes moscow ) OR ( gehrmann historical institutes moscow )).
• Adding a wildcard symbol may retrieve word variants: (("german historical institutes moscow") OR ("gehrmann historical institutes moscow"))*.