Perhaps you should try some spelling variations:
"bibliotheca historica rumanien am" » "bibliotheca historica rumanien im" (Expand Search), "bibliotheca historica rumanien raum" (Expand Search), "bibliotheca historica rumanien aus" (Expand Search), "bibliothek historica rumanien am" (Expand Search)
"bibliotheca historica romaniae _" » "bibliothek historica romaniae _" (Expand Search), "bibliotheca historica romania _" (Expand Search), "bibliotheca historica romanian _" (Expand Search), "bibliotheca historica roumanian _" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bibliotheca historica rumanien am\") OR (\"bibliotheca historica romaniae _\"))~".
• Removing quotes may allow a broader search: (( bibliotheca historica rumanien am ) OR ( bibliotheca historica romaniae _ ))~.
• Adding a wildcard symbol may retrieve word variants: (("bibliotheca historica rumanien am") OR ("bibliotheca historica romaniae _"))*.