Perhaps you should try some spelling variations:
"bibliotheca historica rumanien 1938" » "bibliotheca historica romaniae 1938" (Expand Search), "bibliotheca historica rumanien 1918" (Expand Search), "bibliotheca historica rumanien 1935" (Expand Search), "bibliotheca historica rumanien 1925" (Expand Search), "bibliothek historica rumanien 1938" (Expand Search)
"bibliotheca historica romania 1925" » "bibliotheca historica romaniae 1925" (Expand Search), "bibliotheca historica romania 1918" (Expand Search), "bibliotheca historica rumanien 1925" (Expand Search), "bibliothek historica romania 1925" (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: (("bibliotheca historica romania 1925") OR ("bibliotheca historica rumanien 1938"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bibliotheca historica romania 1925\") OR (\"bibliotheca historica rumanien 1938\"))*".
• Removing quotes may allow a broader search: (( bibliotheca historica romania 1925 ) OR ( bibliotheca historica rumanien 1938 ))*.