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