Perhaps you should try some spelling variations:
"bibliotheca historica roumanian 1" » "bibliotheca historica romaniae 1" (Expand Search), "bibliotheca historica rumanien 1" (Expand Search), "bibliothek historica roumanian 1" (Expand Search)
"bibliotheca historica rumanien 1925" » "bibliotheca historica romaniae 1925" (Expand Search), "bibliotheca historica rumanien 1935" (Expand Search), "bibliotheca historica rumanien 1918" (Expand Search), "bibliotheca historica rumanien 1938" (Expand Search), "bibliothek historica rumanien 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 roumanian 1") OR ("bibliotheca historica rumanien 1925"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bibliotheca historica roumanian 1\") OR (\"bibliotheca historica rumanien 1925\"))".
• Removing quotes may allow a broader search: (( bibliotheca historica roumanian 1 ) OR ( bibliotheca historica rumanien 1925 )).
• Adding a wildcard symbol may retrieve word variants: (("bibliotheca historica roumanian 1") OR ("bibliotheca historica rumanien 1925"))*.